author | huffman |
Wed, 18 Feb 2009 20:14:45 -0800 | |
changeset 29987 | 391dcbd7e4dd |
parent 29843 | 4bb780545478 |
child 30373 | ffdd7a1f1ff0 |
permissions | -rw-r--r-- |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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(* A functor for finite mappings based on Tables *) |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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signature FUNC = |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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sig |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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type 'a T |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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type key |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val apply : 'a T -> key -> 'a |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val applyd :'a T -> (key -> 'a) -> key -> 'a |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val combine : ('a -> 'a -> 'a) -> ('a -> bool) -> 'a T -> 'a T -> 'a T |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val defined : 'a T -> key -> bool |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val dom : 'a T -> key list |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val fold : (key * 'a -> 'b -> 'b) -> 'a T -> 'b -> 'b |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val graph : 'a T -> (key * 'a) list |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val is_undefined : 'a T -> bool |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val mapf : ('a -> 'b) -> 'a T -> 'b T |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val tryapplyd : 'a T -> key -> 'a -> 'a |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val undefine : key -> 'a T -> 'a T |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val undefined : 'a T |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val update : key * 'a -> 'a T -> 'a T |
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val updatep : (key * 'a -> bool) -> key * 'a -> 'a T -> 'a T |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val choose : 'a T -> key * 'a |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val onefunc : key * 'a -> 'a T |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val get_first: (key*'a -> 'a option) -> 'a T -> 'a option |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val fns: |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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{key_ord: key*key -> order, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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apply : 'a T -> key -> 'a, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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applyd :'a T -> (key -> 'a) -> key -> 'a, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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combine : ('a -> 'a -> 'a) -> ('a -> bool) -> 'a T -> 'a T -> 'a T, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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defined : 'a T -> key -> bool, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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dom : 'a T -> key list, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fold : (key * 'a -> 'b -> 'b) -> 'a T -> 'b -> 'b, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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graph : 'a T -> (key * 'a) list, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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is_undefined : 'a T -> bool, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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mapf : ('a -> 'b) -> 'a T -> 'b T, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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tryapplyd : 'a T -> key -> 'a -> 'a, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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undefine : key -> 'a T -> 'a T, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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undefined : 'a T, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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update : key * 'a -> 'a T -> 'a T, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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updatep : (key * 'a -> bool) -> key * 'a -> 'a T -> 'a T, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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choose : 'a T -> key * 'a, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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onefunc : key * 'a -> 'a T, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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get_first: (key*'a -> 'a option) -> 'a T -> 'a option} |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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end; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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functor FuncFun(Key: KEY) : FUNC= |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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struct |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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type key = Key.key; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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structure Tab = TableFun(Key); |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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type 'a T = 'a Tab.table; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val undefined = Tab.empty; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val is_undefined = Tab.is_empty; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val mapf = Tab.map; |
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val fold = Tab.fold; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val graph = Tab.dest; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val dom = Tab.keys; |
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fun applyd f d x = case Tab.lookup f x of |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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SOME y => y |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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| NONE => d x; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fun apply f x = applyd f (fn _ => raise Tab.UNDEF x) x; |
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fun tryapplyd f a d = applyd f (K d) a; |
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val defined = Tab.defined; |
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fun undefine x t = (Tab.delete x t handle UNDEF => t); |
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val update = Tab.update; |
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fun updatep p (k,v) t = if p (k, v) then t else update (k,v) t |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fun combine f z a b = |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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let |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fun h (k,v) t = case Tab.lookup t k of |
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NONE => Tab.update (k,v) t |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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| SOME v' => let val w = f v v' |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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in if z w then Tab.delete k t else Tab.update (k,w) t end; |
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in Tab.fold h a b end; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fun choose f = case Tab.max_key f of |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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SOME k => (k,valOf (Tab.lookup f k)) |
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| NONE => error "FuncFun.choose : Completely undefined function" |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fun onefunc kv = update kv undefined |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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local |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fun find f (k,v) NONE = f (k,v) |
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| find f (k,v) r = r |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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in |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fun get_first f t = fold (find f) t NONE |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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end |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val fns = |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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{key_ord = Key.ord, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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apply = apply, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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applyd = applyd, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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combine = combine, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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defined = defined, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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dom = dom, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fold = fold, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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graph = graph, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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is_undefined = is_undefined, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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mapf = mapf, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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tryapplyd = tryapplyd, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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undefine = undefine, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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undefined = undefined, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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update = update, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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updatep = updatep, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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choose = choose, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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onefunc = onefunc, |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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get_first = get_first} |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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end; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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structure Intfunc = FuncFun(type key = int val ord = int_ord); |
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structure Symfunc = FuncFun(type key = string val ord = fast_string_ord); |
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structure Termfunc = FuncFun(type key = term val ord = TermOrd.fast_term_ord); |
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structure Ctermfunc = FuncFun(type key = cterm val ord = (fn (s,t) => TermOrd.fast_term_ord(term_of s, term_of t))); |
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structure Ratfunc = FuncFun(type key = Rat.rat val ord = Rat.ord); |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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(* Some conversions-related stuff which has been forbidden entrance into Pure/conv.ML*) |
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structure Conv2 = |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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struct |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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open Conv |
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fun instantiate_cterm' ty tms = Drule.cterm_rule (Drule.instantiate' ty tms) |
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fun is_comb t = case (term_of t) of _$_ => true | _ => false; |
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fun is_abs t = case (term_of t) of Abs _ => true | _ => false; |
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fun end_itlist f l = |
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case l of |
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[] => error "end_itlist" |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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| [x] => x |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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| (h::t) => f h (end_itlist f t); |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fun absc cv ct = case term_of ct of |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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Abs (v,_, _) => |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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let val (x,t) = Thm.dest_abs (SOME v) ct |
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in Thm.abstract_rule ((fst o dest_Free o term_of) x) x (cv t) |
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end |
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| _ => all_conv ct; |
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|
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fun cache_conv conv = |
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let |
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val tab = ref Termtab.empty |
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fun cconv t = |
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case Termtab.lookup (!tab) (term_of t) of |
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SOME th => th |
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| NONE => let val th = conv t |
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in ((tab := Termtab.insert Thm.eq_thm (term_of t, th) (!tab)); th) end |
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in cconv end; |
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fun is_binop ct ct' = ct aconvc (Thm.dest_fun (Thm.dest_fun ct')) |
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handle CTERM _ => false; |
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|
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local |
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fun thenqc conv1 conv2 tm = |
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case try conv1 tm of |
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SOME th1 => (case try conv2 (Thm.rhs_of th1) of SOME th2 => Thm.transitive th1 th2 | NONE => th1) |
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| NONE => conv2 tm |
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|
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fun thencqc conv1 conv2 tm = |
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let val th1 = conv1 tm |
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in (case try conv2 (Thm.rhs_of th1) of SOME th2 => Thm.transitive th1 th2 | NONE => th1) |
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end |
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fun comb_qconv conv tm = |
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let val (l,r) = Thm.dest_comb tm |
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in (case try conv l of |
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SOME th1 => (case try conv r of SOME th2 => Thm.combination th1 th2 |
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| NONE => Drule.fun_cong_rule th1 r) |
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| NONE => Drule.arg_cong_rule l (conv r)) |
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end |
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fun repeatqc conv tm = thencqc conv (repeatqc conv) tm |
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fun sub_qconv conv tm = if is_abs tm then absc conv tm else comb_qconv conv tm |
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fun once_depth_qconv conv tm = |
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(conv else_conv (sub_qconv (once_depth_qconv conv))) tm |
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fun depth_qconv conv tm = |
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thenqc (sub_qconv (depth_qconv conv)) |
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(repeatqc conv) tm |
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fun redepth_qconv conv tm = |
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thenqc (sub_qconv (redepth_qconv conv)) |
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(thencqc conv (redepth_qconv conv)) tm |
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fun top_depth_qconv conv tm = |
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thenqc (repeatqc conv) |
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(thencqc (sub_qconv (top_depth_qconv conv)) |
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(thencqc conv (top_depth_qconv conv))) tm |
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fun top_sweep_qconv conv tm = |
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thenqc (repeatqc conv) |
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(sub_qconv (top_sweep_qconv conv)) tm |
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in |
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val (once_depth_conv, depth_conv, rdepth_conv, top_depth_conv, top_sweep_conv) = |
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(fn c => try_conv (once_depth_qconv c), |
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fn c => try_conv (depth_qconv c), |
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fn c => try_conv (redepth_qconv c), |
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fn c => try_conv (top_depth_qconv c), |
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fn c => try_conv (top_sweep_qconv c)); |
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end; |
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end; |
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|
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|
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(* Some useful derived rules *) |
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fun deduct_antisym_rule tha thb = |
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equal_intr (implies_intr (cprop_of thb) tha) |
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(implies_intr (cprop_of tha) thb); |
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|
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fun prove_hyp tha thb = |
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if exists (curry op aconv (concl_of tha)) (#hyps (rep_thm thb)) |
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then equal_elim (symmetric (deduct_antisym_rule tha thb)) tha else thb; |
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|
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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signature REAL_ARITH = |
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sig |
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datatype positivstellensatz = |
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Axiom_eq of int |
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| Axiom_le of int |
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| Axiom_lt of int |
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| Rational_eq of Rat.rat |
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| Rational_le of Rat.rat |
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| Rational_lt of Rat.rat |
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| Square of cterm |
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| Eqmul of cterm * positivstellensatz |
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| Sum of positivstellensatz * positivstellensatz |
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| Product of positivstellensatz * positivstellensatz; |
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|
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val gen_gen_real_arith : |
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Proof.context -> (Rat.rat -> Thm.cterm) * conv * conv * conv * |
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conv * conv * conv * conv * conv * conv * |
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( (thm list * thm list * thm list -> positivstellensatz -> thm) -> |
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thm list * thm list * thm list -> thm) -> conv |
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224 |
val real_linear_prover : |
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(thm list * thm list * thm list -> positivstellensatz -> thm) -> |
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thm list * thm list * thm list -> thm |
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|
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val gen_real_arith : Proof.context -> |
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(Rat.rat -> cterm) * conv * conv * conv * conv * conv * conv * conv * |
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( (thm list * thm list * thm list -> positivstellensatz -> thm) -> |
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thm list * thm list * thm list -> thm) -> conv |
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val gen_prover_real_arith : Proof.context -> |
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((thm list * thm list * thm list -> positivstellensatz -> thm) -> |
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thm list * thm list * thm list -> thm) -> conv |
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val real_arith : Proof.context -> conv |
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236 |
end |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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structure RealArith (* : REAL_ARITH *)= |
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struct |
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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241 |
open Conv Thm Conv2;; |
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242 |
(* ------------------------------------------------------------------------- *) |
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(* Data structure for Positivstellensatz refutations. *) |
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(* ------------------------------------------------------------------------- *) |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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datatype positivstellensatz = |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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Axiom_eq of int |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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248 |
| Axiom_le of int |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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249 |
| Axiom_lt of int |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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250 |
| Rational_eq of Rat.rat |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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251 |
| Rational_le of Rat.rat |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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252 |
| Rational_lt of Rat.rat |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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253 |
| Square of cterm |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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254 |
| Eqmul of cterm * positivstellensatz |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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255 |
| Sum of positivstellensatz * positivstellensatz |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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256 |
| Product of positivstellensatz * positivstellensatz; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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257 |
(* Theorems used in the procedure *) |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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258 |
|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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fun conjunctions th = case try Conjunction.elim th of |
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SOME (th1,th2) => (conjunctions th1) @ conjunctions th2 |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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261 |
| NONE => [th]; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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262 |
|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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263 |
val pth = @{lemma "(((x::real) < y) == (y - x > 0)) &&& ((x <= y) == (y - x >= 0)) |
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&&& ((x = y) == (x - y = 0)) &&& ((~(x < y)) == (x - y >= 0)) &&& ((~(x <= y)) == (x - y > 0)) |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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265 |
&&& ((~(x = y)) == (x - y > 0 | -(x - y) > 0))" |
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266 |
by (atomize (full), auto simp add: less_diff_eq le_diff_eq not_less)} |> |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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conjunctions; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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val pth_final = @{lemma "(~p ==> False) ==> p" by blast} |
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val pth_add = |
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@{lemma "(x = (0::real) ==> y = 0 ==> x + y = 0 ) &&& ( x = 0 ==> y >= 0 ==> x + y >= 0) |
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&&& (x = 0 ==> y > 0 ==> x + y > 0) &&& (x >= 0 ==> y = 0 ==> x + y >= 0) |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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&&& (x >= 0 ==> y >= 0 ==> x + y >= 0) &&& (x >= 0 ==> y > 0 ==> x + y > 0) |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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&&& (x > 0 ==> y = 0 ==> x + y > 0) &&& (x > 0 ==> y >= 0 ==> x + y > 0) |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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&&& (x > 0 ==> y > 0 ==> x + y > 0)" by simp_all} |> conjunctions ; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val pth_mul = |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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278 |
@{lemma "(x = (0::real) ==> y = 0 ==> x * y = 0) &&& (x = 0 ==> y >= 0 ==> x * y = 0) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
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(x = 0 ==> y > 0 ==> x * y = 0) &&& (x >= 0 ==> y = 0 ==> x * y = 0) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
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(x >= 0 ==> y >= 0 ==> x * y >= 0 ) &&& ( x >= 0 ==> y > 0 ==> x * y >= 0 ) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
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281 |
(x > 0 ==> y = 0 ==> x * y = 0 ) &&& ( x > 0 ==> y >= 0 ==> x * y >= 0 ) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
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(x > 0 ==> y > 0 ==> x * y > 0)" |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
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283 |
by (auto intro: mult_mono[where a="0::real" and b="x" and d="y" and c="0", simplified] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
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mult_strict_mono[where b="x" and d="y" and a="0" and c="0", simplified])} |> conjunctions; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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285 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
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286 |
val pth_emul = @{lemma "y = (0::real) ==> x * y = 0" by simp}; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val pth_square = @{lemma "x * x >= (0::real)" by simp}; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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288 |
|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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289 |
val weak_dnf_simps = List.take (simp_thms, 34) |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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290 |
@ conjunctions @{lemma "((P & (Q | R)) = ((P&Q) | (P&R))) &&& ((Q | R) & P) = ((Q&P) | (R&P)) &&& (P & Q) = (Q & P) &&& ((P | Q) = (Q | P))" by blast+}; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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291 |
|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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val nnfD_simps = conjunctions @{lemma "((~(P & Q)) = (~P | ~Q)) &&& ((~(P | Q)) = (~P & ~Q) ) &&& ((P --> Q) = (~P | Q) ) &&& ((P = Q) = ((P & Q) | (~P & ~ Q))) &&& ((~(P = Q)) = ((P & ~ Q) | (~P & Q)) ) &&& ((~ ~(P)) = P)" by blast+} |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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293 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
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val choice_iff = @{lemma "(ALL x. EX y. P x y) = (EX f. ALL x. P x (f x))" by metis}; |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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295 |
val prenex_simps = map (fn th => th RS sym) ([@{thm "all_conj_distrib"}, @{thm "ex_disj_distrib"}] @ @{thms "all_simps"(1-4)} @ @{thms "ex_simps"(1-4)}); |
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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296 |
|
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A generic decision procedure for linear rea arithmetic and normed vector spaces
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297 |
val real_abs_thms1 = conjunctions @{lemma |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
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|
298 |
"((-1 * abs(x::real) >= r) = (-1 * x >= r & 1 * x >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
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299 |
((-1 * abs(x) + a >= r) = (a + -1 * x >= r & a + 1 * x >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
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300 |
((a + -1 * abs(x) >= r) = (a + -1 * x >= r & a + 1 * x >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
301 |
((a + -1 * abs(x) + b >= r) = (a + -1 * x + b >= r & a + 1 * x + b >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
302 |
((a + b + -1 * abs(x) >= r) = (a + b + -1 * x >= r & a + b + 1 * x >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
303 |
((a + b + -1 * abs(x) + c >= r) = (a + b + -1 * x + c >= r & a + b + 1 * x + c >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
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changeset
|
304 |
((-1 * max x y >= r) = (-1 * x >= r & -1 * y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
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changeset
|
305 |
((-1 * max x y + a >= r) = (a + -1 * x >= r & a + -1 * y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
306 |
((a + -1 * max x y >= r) = (a + -1 * x >= r & a + -1 * y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
307 |
((a + -1 * max x y + b >= r) = (a + -1 * x + b >= r & a + -1 * y + b >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
308 |
((a + b + -1 * max x y >= r) = (a + b + -1 * x >= r & a + b + -1 * y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
309 |
((a + b + -1 * max x y + c >= r) = (a + b + -1 * x + c >= r & a + b + -1 * y + c >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
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|
310 |
((1 * min x y >= r) = (1 * x >= r & 1 * y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
311 |
((1 * min x y + a >= r) = (a + 1 * x >= r & a + 1 * y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
312 |
((a + 1 * min x y >= r) = (a + 1 * x >= r & a + 1 * y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
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|
313 |
((a + 1 * min x y + b >= r) = (a + 1 * x + b >= r & a + 1 * y + b >= r) )&&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
314 |
((a + b + 1 * min x y >= r) = (a + b + 1 * x >= r & a + b + 1 * y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
315 |
((a + b + 1 * min x y + c >= r) = (a + b + 1 * x + c >= r & a + b + 1 * y + c >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
316 |
((min x y >= r) = (x >= r & y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
317 |
((min x y + a >= r) = (a + x >= r & a + y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
318 |
((a + min x y >= r) = (a + x >= r & a + y >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
319 |
((a + min x y + b >= r) = (a + x + b >= r & a + y + b >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
320 |
((a + b + min x y >= r) = (a + b + x >= r & a + b + y >= r) )&&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
321 |
((a + b + min x y + c >= r) = (a + b + x + c >= r & a + b + y + c >= r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
322 |
((-1 * abs(x) > r) = (-1 * x > r & 1 * x > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
323 |
((-1 * abs(x) + a > r) = (a + -1 * x > r & a + 1 * x > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
324 |
((a + -1 * abs(x) > r) = (a + -1 * x > r & a + 1 * x > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
325 |
((a + -1 * abs(x) + b > r) = (a + -1 * x + b > r & a + 1 * x + b > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
326 |
((a + b + -1 * abs(x) > r) = (a + b + -1 * x > r & a + b + 1 * x > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
327 |
((a + b + -1 * abs(x) + c > r) = (a + b + -1 * x + c > r & a + b + 1 * x + c > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
328 |
((-1 * max x y > r) = ((-1 * x > r) & -1 * y > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
329 |
((-1 * max x y + a > r) = (a + -1 * x > r & a + -1 * y > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
330 |
((a + -1 * max x y > r) = (a + -1 * x > r & a + -1 * y > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
331 |
((a + -1 * max x y + b > r) = (a + -1 * x + b > r & a + -1 * y + b > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
332 |
((a + b + -1 * max x y > r) = (a + b + -1 * x > r & a + b + -1 * y > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
333 |
((a + b + -1 * max x y + c > r) = (a + b + -1 * x + c > r & a + b + -1 * y + c > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
334 |
((min x y > r) = (x > r & y > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
335 |
((min x y + a > r) = (a + x > r & a + y > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
336 |
((a + min x y > r) = (a + x > r & a + y > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
337 |
((a + min x y + b > r) = (a + x + b > r & a + y + b > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
338 |
((a + b + min x y > r) = (a + b + x > r & a + b + y > r)) &&& |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
339 |
((a + b + min x y + c > r) = (a + b + x + c > r & a + b + y + c > r))" |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
340 |
by auto}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
341 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
342 |
val abs_split' = @{lemma "P (abs (x::'a::ordered_idom)) == (x >= 0 & P x | x < 0 & P (-x))" |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
343 |
by (atomize (full)) (auto split add: abs_split)}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
344 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
345 |
val max_split = @{lemma "P (max x y) == ((x::'a::linorder) <= y & P y | x > y & P x)" |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
346 |
by (atomize (full)) (cases "x <= y", auto simp add: max_def)}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
347 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
348 |
val min_split = @{lemma "P (min x y) == ((x::'a::linorder) <= y & P x | x > y & P y)" |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
349 |
by (atomize (full)) (cases "x <= y", auto simp add: min_def)}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
350 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
351 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
352 |
(* Miscalineous *) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
353 |
fun literals_conv bops uops cv = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
354 |
let fun h t = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
355 |
case (term_of t) of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
356 |
b$_$_ => if member (op aconv) bops b then binop_conv h t else cv t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
357 |
| u$_ => if member (op aconv) uops u then arg_conv h t else cv t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
358 |
| _ => cv t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
359 |
in h end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
360 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
361 |
fun cterm_of_rat x = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
362 |
let val (a, b) = Rat.quotient_of_rat x |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
363 |
in |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
364 |
if b = 1 then Numeral.mk_cnumber @{ctyp "real"} a |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
365 |
else Thm.capply (Thm.capply @{cterm "op / :: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
366 |
(Numeral.mk_cnumber @{ctyp "real"} a)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
367 |
(Numeral.mk_cnumber @{ctyp "real"} b) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
368 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
369 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
370 |
fun dest_ratconst t = case term_of t of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
371 |
Const(@{const_name divide}, _)$a$b => Rat.rat_of_quotient(HOLogic.dest_number a |> snd, HOLogic.dest_number b |> snd) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
372 |
| _ => Rat.rat_of_int (HOLogic.dest_number (term_of t) |> snd) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
373 |
fun is_ratconst t = can dest_ratconst t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
374 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
375 |
fun find_term p t = if p t then t else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
376 |
case t of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
377 |
a$b => (find_term p a handle TERM _ => find_term p b) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
378 |
| Abs (_,_,t') => find_term p t' |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
379 |
| _ => raise TERM ("find_term",[t]); |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
380 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
381 |
fun find_cterm p t = if p t then t else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
382 |
case term_of t of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
383 |
a$b => (find_cterm p (Thm.dest_fun t) handle CTERM _ => find_cterm p (Thm.dest_arg t)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
384 |
| Abs (_,_,t') => find_cterm p (Thm.dest_abs NONE t |> snd) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
385 |
| _ => raise CTERM ("find_cterm",[t]); |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
386 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
387 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
388 |
(* A general real arithmetic prover *) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
389 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
390 |
fun gen_gen_real_arith ctxt (mk_numeric, |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
391 |
numeric_eq_conv,numeric_ge_conv,numeric_gt_conv, |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
392 |
poly_conv,poly_neg_conv,poly_add_conv,poly_mul_conv, |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
393 |
absconv1,absconv2,prover) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
394 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
395 |
open Conv Thm; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
396 |
val pre_ss = HOL_basic_ss addsimps simp_thms@ ex_simps@ all_simps@[@{thm not_all},@{thm not_ex},ex_disj_distrib, all_conj_distrib, @{thm if_bool_eq_disj}] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
397 |
val prenex_ss = HOL_basic_ss addsimps prenex_simps |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
398 |
val skolemize_ss = HOL_basic_ss addsimps [choice_iff] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
399 |
val presimp_conv = Simplifier.rewrite (Simplifier.context ctxt pre_ss) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
400 |
val prenex_conv = Simplifier.rewrite (Simplifier.context ctxt prenex_ss) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
401 |
val skolemize_conv = Simplifier.rewrite (Simplifier.context ctxt skolemize_ss) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
402 |
val weak_dnf_ss = HOL_basic_ss addsimps weak_dnf_simps |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
403 |
val weak_dnf_conv = Simplifier.rewrite (Simplifier.context ctxt weak_dnf_ss) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
404 |
fun eqT_elim th = equal_elim (symmetric th) @{thm TrueI} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
405 |
fun oprconv cv ct = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
406 |
let val g = Thm.dest_fun2 ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
407 |
in if g aconvc @{cterm "op <= :: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
408 |
orelse g aconvc @{cterm "op < :: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
409 |
then arg_conv cv ct else arg1_conv cv ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
410 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
411 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
412 |
fun real_ineq_conv th ct = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
413 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
414 |
val th' = (instantiate (match (lhs_of th, ct)) th |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
415 |
handle MATCH => raise CTERM ("real_ineq_conv", [ct])) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
416 |
in transitive th' (oprconv poly_conv (Thm.rhs_of th')) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
417 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
418 |
val [real_lt_conv, real_le_conv, real_eq_conv, |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
419 |
real_not_lt_conv, real_not_le_conv, _] = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
420 |
map real_ineq_conv pth |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
421 |
fun match_mp_rule ths ths' = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
422 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
423 |
fun f ths ths' = case ths of [] => raise THM("match_mp_rule",0,ths) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
424 |
| th::ths => (ths' MRS th handle THM _ => f ths ths') |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
425 |
in f ths ths' end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
426 |
fun mul_rule th th' = fconv_rule (arg_conv (oprconv poly_mul_conv)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
427 |
(match_mp_rule pth_mul [th, th']) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
428 |
fun add_rule th th' = fconv_rule (arg_conv (oprconv poly_add_conv)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
429 |
(match_mp_rule pth_add [th, th']) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
430 |
fun emul_rule ct th = fconv_rule (arg_conv (oprconv poly_mul_conv)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
431 |
(instantiate' [] [SOME ct] (th RS pth_emul)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
432 |
fun square_rule t = fconv_rule (arg_conv (oprconv poly_mul_conv)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
433 |
(instantiate' [] [SOME t] pth_square) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
434 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
435 |
fun hol_of_positivstellensatz(eqs,les,lts) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
436 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
437 |
fun translate prf = case prf of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
438 |
Axiom_eq n => nth eqs n |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
439 |
| Axiom_le n => nth les n |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
440 |
| Axiom_lt n => nth lts n |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
441 |
| Rational_eq x => eqT_elim(numeric_eq_conv(capply @{cterm Trueprop} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
442 |
(capply (capply @{cterm "op =::real => _"} (mk_numeric x)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
443 |
@{cterm "0::real"}))) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
444 |
| Rational_le x => eqT_elim(numeric_ge_conv(capply @{cterm Trueprop} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
445 |
(capply (capply @{cterm "op <=::real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
446 |
@{cterm "0::real"}) (mk_numeric x)))) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
447 |
| Rational_lt x => eqT_elim(numeric_gt_conv(capply @{cterm Trueprop} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
448 |
(capply (capply @{cterm "op <::real => _"} @{cterm "0::real"}) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
449 |
(mk_numeric x)))) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
450 |
| Square t => square_rule t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
451 |
| Eqmul(t,p) => emul_rule t (translate p) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
452 |
| Sum(p1,p2) => add_rule (translate p1) (translate p2) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
453 |
| Product(p1,p2) => mul_rule (translate p1) (translate p2) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
454 |
in fn prf => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
455 |
fconv_rule (first_conv [numeric_ge_conv, numeric_gt_conv, numeric_eq_conv, all_conv]) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
456 |
(translate prf) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
457 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
458 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
459 |
val init_conv = presimp_conv then_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
460 |
nnf_conv then_conv skolemize_conv then_conv prenex_conv then_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
461 |
weak_dnf_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
462 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
463 |
val concl = dest_arg o cprop_of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
464 |
fun is_binop opr ct = (dest_fun2 ct aconvc opr handle CTERM _ => false) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
465 |
val is_req = is_binop @{cterm "op =:: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
466 |
val is_ge = is_binop @{cterm "op <=:: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
467 |
val is_gt = is_binop @{cterm "op <:: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
468 |
val is_conj = is_binop @{cterm "op &"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
469 |
val is_disj = is_binop @{cterm "op |"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
470 |
fun conj_pair th = (th RS @{thm conjunct1}, th RS @{thm conjunct2}) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
471 |
fun disj_cases th th1 th2 = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
472 |
let val (p,q) = dest_binop (concl th) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
473 |
val c = concl th1 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
474 |
val _ = if c aconvc (concl th2) then () else error "disj_cases : conclusions not alpha convertible" |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
475 |
in implies_elim (implies_elim (implies_elim (instantiate' [] (map SOME [p,q,c]) @{thm disjE}) th) (implies_intr (capply @{cterm Trueprop} p) th1)) (implies_intr (capply @{cterm Trueprop} q) th2) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
476 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
477 |
fun overall dun ths = case ths of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
478 |
[] => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
479 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
480 |
val (eq,ne) = List.partition (is_req o concl) dun |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
481 |
val (le,nl) = List.partition (is_ge o concl) ne |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
482 |
val lt = filter (is_gt o concl) nl |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
483 |
in prover hol_of_positivstellensatz (eq,le,lt) end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
484 |
| th::oths => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
485 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
486 |
val ct = concl th |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
487 |
in |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
488 |
if is_conj ct then |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
489 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
490 |
val (th1,th2) = conj_pair th in |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
491 |
overall dun (th1::th2::oths) end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
492 |
else if is_disj ct then |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
493 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
494 |
val th1 = overall dun (assume (capply @{cterm Trueprop} (dest_arg1 ct))::oths) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
495 |
val th2 = overall dun (assume (capply @{cterm Trueprop} (dest_arg ct))::oths) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
496 |
in disj_cases th th1 th2 end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
497 |
else overall (th::dun) oths |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
498 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
499 |
fun dest_binary b ct = if is_binop b ct then dest_binop ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
500 |
else raise CTERM ("dest_binary",[b,ct]) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
501 |
val dest_eq = dest_binary @{cterm "op = :: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
502 |
val neq_th = nth pth 5 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
503 |
fun real_not_eq_conv ct = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
504 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
505 |
val (l,r) = dest_eq (dest_arg ct) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
506 |
val th = instantiate ([],[(@{cpat "?x::real"},l),(@{cpat "?y::real"},r)]) neq_th |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
507 |
val th_p = poly_conv(dest_arg(dest_arg1(Thm.rhs_of th))) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
508 |
val th_x = Drule.arg_cong_rule @{cterm "uminus :: real => _"} th_p |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
509 |
val th_n = fconv_rule (arg_conv poly_neg_conv) th_x |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
510 |
val th' = Drule.binop_cong_rule @{cterm "op |"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
511 |
(Drule.arg_cong_rule (capply @{cterm "op <::real=>_"} @{cterm "0::real"}) th_p) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
512 |
(Drule.arg_cong_rule (capply @{cterm "op <::real=>_"} @{cterm "0::real"}) th_n) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
513 |
in transitive th th' |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
514 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
515 |
fun equal_implies_1_rule PQ = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
516 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
517 |
val P = lhs_of PQ |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
518 |
in implies_intr P (equal_elim PQ (assume P)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
519 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
520 |
(* FIXME!!! Copied from groebner.ml *) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
521 |
val strip_exists = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
522 |
let fun h (acc, t) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
523 |
case (term_of t) of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
524 |
Const("Ex",_)$Abs(x,T,p) => h (dest_abs NONE (dest_arg t) |>> (fn v => v::acc)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
525 |
| _ => (acc,t) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
526 |
in fn t => h ([],t) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
527 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
528 |
fun name_of x = case term_of x of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
529 |
Free(s,_) => s |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
530 |
| Var ((s,_),_) => s |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
531 |
| _ => "x" |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
532 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
533 |
fun mk_forall x th = Drule.arg_cong_rule (instantiate_cterm' [SOME (ctyp_of_term x)] [] @{cpat "All :: (?'a => bool) => _" }) (abstract_rule (name_of x) x th) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
534 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
535 |
val specl = fold_rev (fn x => fn th => instantiate' [] [SOME x] (th RS spec)); |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
536 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
537 |
fun ext T = Drule.cterm_rule (instantiate' [SOME T] []) @{cpat Ex} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
538 |
fun mk_ex v t = Thm.capply (ext (ctyp_of_term v)) (Thm.cabs v t) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
539 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
540 |
fun choose v th th' = case concl_of th of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
541 |
@{term Trueprop} $ (Const("Ex",_)$_) => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
542 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
543 |
val p = (funpow 2 Thm.dest_arg o cprop_of) th |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
544 |
val T = (hd o Thm.dest_ctyp o ctyp_of_term) p |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
545 |
val th0 = fconv_rule (Thm.beta_conversion true) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
546 |
(instantiate' [SOME T] [SOME p, (SOME o Thm.dest_arg o cprop_of) th'] exE) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
547 |
val pv = (Thm.rhs_of o Thm.beta_conversion true) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
548 |
(Thm.capply @{cterm Trueprop} (Thm.capply p v)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
549 |
val th1 = forall_intr v (implies_intr pv th') |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
550 |
in implies_elim (implies_elim th0 th) th1 end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
551 |
| _ => raise THM ("choose",0,[th, th']) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
552 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
553 |
fun simple_choose v th = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
554 |
choose v (assume ((Thm.capply @{cterm Trueprop} o mk_ex v) ((Thm.dest_arg o hd o #hyps o Thm.crep_thm) th))) th |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
555 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
556 |
val strip_forall = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
557 |
let fun h (acc, t) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
558 |
case (term_of t) of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
559 |
Const("All",_)$Abs(x,T,p) => h (dest_abs NONE (dest_arg t) |>> (fn v => v::acc)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
560 |
| _ => (acc,t) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
561 |
in fn t => h ([],t) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
562 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
563 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
564 |
fun f ct = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
565 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
566 |
val nnf_norm_conv' = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
567 |
nnf_conv then_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
568 |
literals_conv [@{term "op &"}, @{term "op |"}] [] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
569 |
(cache_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
570 |
(first_conv [real_lt_conv, real_le_conv, |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
571 |
real_eq_conv, real_not_lt_conv, |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
572 |
real_not_le_conv, real_not_eq_conv, all_conv])) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
573 |
fun absremover ct = (literals_conv [@{term "op &"}, @{term "op |"}] [] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
574 |
(try_conv (absconv1 then_conv binop_conv (arg_conv poly_conv))) then_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
575 |
try_conv (absconv2 then_conv nnf_norm_conv' then_conv binop_conv absremover)) ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
576 |
val nct = capply @{cterm Trueprop} (capply @{cterm "Not"} ct) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
577 |
val th0 = (init_conv then_conv arg_conv nnf_norm_conv') nct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
578 |
val tm0 = dest_arg (Thm.rhs_of th0) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
579 |
val th = if tm0 aconvc @{cterm False} then equal_implies_1_rule th0 else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
580 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
581 |
val (evs,bod) = strip_exists tm0 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
582 |
val (avs,ibod) = strip_forall bod |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
583 |
val th1 = Drule.arg_cong_rule @{cterm Trueprop} (fold mk_forall avs (absremover ibod)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
584 |
val th2 = overall [] [specl avs (assume (Thm.rhs_of th1))] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
585 |
val th3 = fold simple_choose evs (prove_hyp (equal_elim th1 (assume (capply @{cterm Trueprop} bod))) th2) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
586 |
in Drule.implies_intr_hyps (prove_hyp (equal_elim th0 (assume nct)) th3) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
587 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
588 |
in implies_elim (instantiate' [] [SOME ct] pth_final) th |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
589 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
590 |
in f |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
591 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
592 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
593 |
(* A linear arithmetic prover *) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
594 |
local |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
595 |
val linear_add = Ctermfunc.combine (curry op +/) (fn z => z =/ Rat.zero) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
596 |
fun linear_cmul c = Ctermfunc.mapf (fn x => c */ x) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
597 |
val one_tm = @{cterm "1::real"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
598 |
fun contradictory p (e,_) = ((Ctermfunc.is_undefined e) andalso not(p Rat.zero)) orelse |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
599 |
((gen_eq_set (op aconvc) (Ctermfunc.dom e, [one_tm])) andalso not(p(Ctermfunc.apply e one_tm))) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
600 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
601 |
fun linear_ineqs vars (les,lts) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
602 |
case find_first (contradictory (fn x => x >/ Rat.zero)) lts of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
603 |
SOME r => r |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
604 |
| NONE => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
605 |
(case find_first (contradictory (fn x => x >/ Rat.zero)) les of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
606 |
SOME r => r |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
607 |
| NONE => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
608 |
if null vars then error "linear_ineqs: no contradiction" else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
609 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
610 |
val ineqs = les @ lts |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
611 |
fun blowup v = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
612 |
length(filter (fn (e,_) => Ctermfunc.tryapplyd e v Rat.zero =/ Rat.zero) ineqs) + |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
613 |
length(filter (fn (e,_) => Ctermfunc.tryapplyd e v Rat.zero >/ Rat.zero) ineqs) * |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
614 |
length(filter (fn (e,_) => Ctermfunc.tryapplyd e v Rat.zero </ Rat.zero) ineqs) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
615 |
val v = fst(hd(sort (fn ((_,i),(_,j)) => int_ord (i,j)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
616 |
(map (fn v => (v,blowup v)) vars))) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
617 |
fun addup (e1,p1) (e2,p2) acc = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
618 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
619 |
val c1 = Ctermfunc.tryapplyd e1 v Rat.zero |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
620 |
val c2 = Ctermfunc.tryapplyd e2 v Rat.zero |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
621 |
in if c1 */ c2 >=/ Rat.zero then acc else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
622 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
623 |
val e1' = linear_cmul (Rat.abs c2) e1 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
624 |
val e2' = linear_cmul (Rat.abs c1) e2 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
625 |
val p1' = Product(Rational_lt(Rat.abs c2),p1) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
626 |
val p2' = Product(Rational_lt(Rat.abs c1),p2) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
627 |
in (linear_add e1' e2',Sum(p1',p2'))::acc |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
628 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
629 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
630 |
val (les0,les1) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
631 |
List.partition (fn (e,_) => Ctermfunc.tryapplyd e v Rat.zero =/ Rat.zero) les |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
632 |
val (lts0,lts1) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
633 |
List.partition (fn (e,_) => Ctermfunc.tryapplyd e v Rat.zero =/ Rat.zero) lts |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
634 |
val (lesp,lesn) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
635 |
List.partition (fn (e,_) => Ctermfunc.tryapplyd e v Rat.zero >/ Rat.zero) les1 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
636 |
val (ltsp,ltsn) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
637 |
List.partition (fn (e,_) => Ctermfunc.tryapplyd e v Rat.zero >/ Rat.zero) lts1 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
638 |
val les' = fold_rev (fn ep1 => fold_rev (addup ep1) lesp) lesn les0 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
639 |
val lts' = fold_rev (fn ep1 => fold_rev (addup ep1) (lesp@ltsp)) ltsn |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
640 |
(fold_rev (fn ep1 => fold_rev (addup ep1) (lesn@ltsn)) ltsp lts0) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
641 |
in linear_ineqs (remove (op aconvc) v vars) (les',lts') |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
642 |
end) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
643 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
644 |
fun linear_eqs(eqs,les,lts) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
645 |
case find_first (contradictory (fn x => x =/ Rat.zero)) eqs of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
646 |
SOME r => r |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
647 |
| NONE => (case eqs of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
648 |
[] => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
649 |
let val vars = remove (op aconvc) one_tm |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
650 |
(fold_rev (curry (gen_union (op aconvc)) o Ctermfunc.dom o fst) (les@lts) []) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
651 |
in linear_ineqs vars (les,lts) end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
652 |
| (e,p)::es => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
653 |
if Ctermfunc.is_undefined e then linear_eqs (es,les,lts) else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
654 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
655 |
val (x,c) = Ctermfunc.choose (Ctermfunc.undefine one_tm e) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
656 |
fun xform (inp as (t,q)) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
657 |
let val d = Ctermfunc.tryapplyd t x Rat.zero in |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
658 |
if d =/ Rat.zero then inp else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
659 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
660 |
val k = (Rat.neg d) */ Rat.abs c // c |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
661 |
val e' = linear_cmul k e |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
662 |
val t' = linear_cmul (Rat.abs c) t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
663 |
val p' = Eqmul(cterm_of_rat k,p) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
664 |
val q' = Product(Rational_lt(Rat.abs c),q) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
665 |
in (linear_add e' t',Sum(p',q')) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
666 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
667 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
668 |
in linear_eqs(map xform es,map xform les,map xform lts) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
669 |
end) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
670 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
671 |
fun linear_prover (eq,le,lt) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
672 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
673 |
val eqs = map2 (fn p => fn n => (p,Axiom_eq n)) eq (0 upto (length eq - 1)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
674 |
val les = map2 (fn p => fn n => (p,Axiom_le n)) le (0 upto (length le - 1)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
675 |
val lts = map2 (fn p => fn n => (p,Axiom_lt n)) lt (0 upto (length lt - 1)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
676 |
in linear_eqs(eqs,les,lts) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
677 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
678 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
679 |
fun lin_of_hol ct = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
680 |
if ct aconvc @{cterm "0::real"} then Ctermfunc.undefined |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
681 |
else if not (is_comb ct) then Ctermfunc.onefunc (ct, Rat.one) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
682 |
else if is_ratconst ct then Ctermfunc.onefunc (one_tm, dest_ratconst ct) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
683 |
else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
684 |
let val (lop,r) = Thm.dest_comb ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
685 |
in if not (is_comb lop) then Ctermfunc.onefunc (ct, Rat.one) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
686 |
else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
687 |
let val (opr,l) = Thm.dest_comb lop |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
688 |
in if opr aconvc @{cterm "op + :: real =>_"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
689 |
then linear_add (lin_of_hol l) (lin_of_hol r) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
690 |
else if opr aconvc @{cterm "op * :: real =>_"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
691 |
andalso is_ratconst l then Ctermfunc.onefunc (r, dest_ratconst l) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
692 |
else Ctermfunc.onefunc (ct, Rat.one) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
693 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
694 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
695 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
696 |
fun is_alien ct = case term_of ct of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
697 |
Const(@{const_name "real"}, _)$ n => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
698 |
if can HOLogic.dest_number n then false else true |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
699 |
| _ => false |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
700 |
open Thm |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
701 |
in |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
702 |
fun real_linear_prover translator (eq,le,lt) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
703 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
704 |
val lhs = lin_of_hol o dest_arg1 o dest_arg o cprop_of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
705 |
val rhs = lin_of_hol o dest_arg o dest_arg o cprop_of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
706 |
val eq_pols = map lhs eq |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
707 |
val le_pols = map rhs le |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
708 |
val lt_pols = map rhs lt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
709 |
val aliens = filter is_alien |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
710 |
(fold_rev (curry (gen_union (op aconvc)) o Ctermfunc.dom) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
711 |
(eq_pols @ le_pols @ lt_pols) []) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
712 |
val le_pols' = le_pols @ map (fn v => Ctermfunc.onefunc (v,Rat.one)) aliens |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
713 |
val (_,proof) = linear_prover (eq_pols,le_pols',lt_pols) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
714 |
val le' = le @ map (fn a => instantiate' [] [SOME (dest_arg a)] @{thm real_of_nat_ge_zero}) aliens |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
715 |
in (translator (eq,le',lt) proof) : thm |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
716 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
717 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
718 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
719 |
(* A less general generic arithmetic prover dealing with abs,max and min*) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
720 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
721 |
local |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
722 |
val absmaxmin_elim_ss1 = HOL_basic_ss addsimps real_abs_thms1 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
723 |
fun absmaxmin_elim_conv1 ctxt = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
724 |
Simplifier.rewrite (Simplifier.context ctxt absmaxmin_elim_ss1) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
725 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
726 |
val absmaxmin_elim_conv2 = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
727 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
728 |
val pth_abs = instantiate' [SOME @{ctyp real}] [] abs_split' |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
729 |
val pth_max = instantiate' [SOME @{ctyp real}] [] max_split |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
730 |
val pth_min = instantiate' [SOME @{ctyp real}] [] min_split |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
731 |
val abs_tm = @{cterm "abs :: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
732 |
val p_tm = @{cpat "?P :: real => bool"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
733 |
val x_tm = @{cpat "?x :: real"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
734 |
val y_tm = @{cpat "?y::real"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
735 |
val is_max = is_binop @{cterm "max :: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
736 |
val is_min = is_binop @{cterm "min :: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
737 |
fun is_abs t = is_comb t andalso dest_fun t aconvc abs_tm |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
738 |
fun eliminate_construct p c tm = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
739 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
740 |
val t = find_cterm p tm |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
741 |
val th0 = (symmetric o beta_conversion false) (capply (cabs t tm) t) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
742 |
val (p,ax) = (dest_comb o Thm.rhs_of) th0 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
743 |
in fconv_rule(arg_conv(binop_conv (arg_conv (beta_conversion false)))) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
744 |
(transitive th0 (c p ax)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
745 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
746 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
747 |
val elim_abs = eliminate_construct is_abs |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
748 |
(fn p => fn ax => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
749 |
instantiate ([], [(p_tm,p), (x_tm, dest_arg ax)]) pth_abs) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
750 |
val elim_max = eliminate_construct is_max |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
751 |
(fn p => fn ax => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
752 |
let val (ax,y) = dest_comb ax |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
753 |
in instantiate ([], [(p_tm,p), (x_tm, dest_arg ax), (y_tm,y)]) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
754 |
pth_max end) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
755 |
val elim_min = eliminate_construct is_min |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
756 |
(fn p => fn ax => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
757 |
let val (ax,y) = dest_comb ax |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
758 |
in instantiate ([], [(p_tm,p), (x_tm, dest_arg ax), (y_tm,y)]) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
759 |
pth_min end) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
760 |
in first_conv [elim_abs, elim_max, elim_min, all_conv] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
761 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
762 |
in fun gen_real_arith ctxt (mkconst,eq,ge,gt,norm,neg,add,mul,prover) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
763 |
gen_gen_real_arith ctxt (mkconst,eq,ge,gt,norm,neg,add,mul, |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
764 |
absmaxmin_elim_conv1 ctxt,absmaxmin_elim_conv2,prover) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
765 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
766 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
767 |
(* An instance for reals*) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
768 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
769 |
fun gen_prover_real_arith ctxt prover = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
770 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
771 |
fun simple_cterm_ord t u = TermOrd.term_ord (term_of t, term_of u) = LESS |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
772 |
val {add,mul,neg,pow,sub,main} = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
773 |
Normalizer.semiring_normalizers_ord_wrapper ctxt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
774 |
(valOf (NormalizerData.match ctxt @{cterm "(0::real) + 1"})) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
775 |
simple_cterm_ord |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
776 |
in gen_real_arith ctxt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
777 |
(cterm_of_rat, field_comp_conv, field_comp_conv,field_comp_conv, |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
778 |
main,neg,add,mul, prover) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
779 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
780 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
781 |
fun real_arith ctxt = gen_prover_real_arith ctxt real_linear_prover; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
782 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
783 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
784 |
(* Now the norm procedure for euclidean spaces *) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
785 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
786 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
787 |
signature NORM_ARITH = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
788 |
sig |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
789 |
val norm_arith : Proof.context -> conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
790 |
val norm_arith_tac : Proof.context -> int -> tactic |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
791 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
792 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
793 |
structure NormArith : NORM_ARITH = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
794 |
struct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
795 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
796 |
open Conv Thm Conv2; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
797 |
val bool_eq = op = : bool *bool -> bool |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
798 |
fun dest_ratconst t = case term_of t of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
799 |
Const(@{const_name divide}, _)$a$b => Rat.rat_of_quotient(HOLogic.dest_number a |> snd, HOLogic.dest_number b |> snd) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
800 |
| _ => Rat.rat_of_int (HOLogic.dest_number (term_of t) |> snd) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
801 |
fun is_ratconst t = can dest_ratconst t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
802 |
fun augment_norm b t acc = case term_of t of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
803 |
Const(@{const_name norm}, _) $ _ => insert (eq_pair bool_eq (op aconvc)) (b,dest_arg t) acc |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
804 |
| _ => acc |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
805 |
fun find_normedterms t acc = case term_of t of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
806 |
@{term "op + :: real => _"}$_$_ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
807 |
find_normedterms (dest_arg1 t) (find_normedterms (dest_arg t) acc) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
808 |
| @{term "op * :: real => _"}$_$n => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
809 |
if not (is_ratconst (dest_arg1 t)) then acc else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
810 |
augment_norm (dest_ratconst (dest_arg1 t) >=/ Rat.zero) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
811 |
(dest_arg t) acc |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
812 |
| _ => augment_norm true t acc |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
813 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
814 |
val cterm_lincomb_neg = Ctermfunc.mapf Rat.neg |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
815 |
fun cterm_lincomb_cmul c t = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
816 |
if c =/ Rat.zero then Ctermfunc.undefined else Ctermfunc.mapf (fn x => x */ c) t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
817 |
fun cterm_lincomb_add l r = Ctermfunc.combine (curry op +/) (fn x => x =/ Rat.zero) l r |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
818 |
fun cterm_lincomb_sub l r = cterm_lincomb_add l (cterm_lincomb_neg r) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
819 |
fun cterm_lincomb_eq l r = Ctermfunc.is_undefined (cterm_lincomb_sub l r) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
820 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
821 |
val int_lincomb_neg = Intfunc.mapf Rat.neg |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
822 |
fun int_lincomb_cmul c t = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
823 |
if c =/ Rat.zero then Intfunc.undefined else Intfunc.mapf (fn x => x */ c) t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
824 |
fun int_lincomb_add l r = Intfunc.combine (curry op +/) (fn x => x =/ Rat.zero) l r |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
825 |
fun int_lincomb_sub l r = int_lincomb_add l (int_lincomb_neg r) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
826 |
fun int_lincomb_eq l r = Intfunc.is_undefined (int_lincomb_sub l r) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
827 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
828 |
fun vector_lincomb t = case term_of t of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
829 |
Const(@{const_name plus},Type("fun",[Type("Finite_Cartesian_Product.^",_),_])) $ _ $ _ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
830 |
cterm_lincomb_add (vector_lincomb (dest_arg1 t)) (vector_lincomb (dest_arg t)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
831 |
| Const(@{const_name minus},Type("fun",[Type("Finite_Cartesian_Product.^",_),_])) $ _ $ _ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
832 |
cterm_lincomb_sub (vector_lincomb (dest_arg1 t)) (vector_lincomb (dest_arg t)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
833 |
| Const(@{const_name vector_scalar_mult},Type("fun",[Type("Finite_Cartesian_Product.^",_),_]))$_$_ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
834 |
cterm_lincomb_cmul (dest_ratconst (dest_arg1 t)) (vector_lincomb (dest_arg t)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
835 |
| Const(@{const_name uminus},Type("fun",[Type("Finite_Cartesian_Product.^",_),_]))$_ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
836 |
cterm_lincomb_neg (vector_lincomb (dest_arg t)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
837 |
| Const(@{const_name vec},_)$_ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
838 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
839 |
val b = ((snd o HOLogic.dest_number o term_of o dest_arg) t = 0 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
840 |
handle TERM _=> false) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
841 |
in if b then Ctermfunc.onefunc (t,Rat.one) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
842 |
else Ctermfunc.undefined |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
843 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
844 |
| _ => Ctermfunc.onefunc (t,Rat.one) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
845 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
846 |
fun vector_lincombs ts = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
847 |
fold_rev |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
848 |
(fn t => fn fns => case AList.lookup (op aconvc) fns t of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
849 |
NONE => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
850 |
let val f = vector_lincomb t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
851 |
in case find_first (fn (_,f') => cterm_lincomb_eq f f') fns of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
852 |
SOME (_,f') => (t,f') :: fns |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
853 |
| NONE => (t,f) :: fns |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
854 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
855 |
| SOME _ => fns) ts [] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
856 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
857 |
fun replacenegnorms cv t = case term_of t of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
858 |
@{term "op + :: real => _"}$_$_ => binop_conv (replacenegnorms cv) t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
859 |
| @{term "op * :: real => _"}$_$_ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
860 |
if dest_ratconst (dest_arg1 t) </ Rat.zero then arg_conv cv t else reflexive t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
861 |
| _ => reflexive t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
862 |
fun flip v eq = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
863 |
if Ctermfunc.defined eq v |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
864 |
then Ctermfunc.update (v, Rat.neg (Ctermfunc.apply eq v)) eq else eq |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
865 |
fun allsubsets s = case s of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
866 |
[] => [[]] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
867 |
|(a::t) => let val res = allsubsets t in |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
868 |
map (cons a) res @ res end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
869 |
fun evaluate env lin = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
870 |
Intfunc.fold (fn (x,c) => fn s => s +/ c */ (Intfunc.apply env x)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
871 |
lin Rat.zero |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
872 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
873 |
fun solve (vs,eqs) = case (vs,eqs) of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
874 |
([],[]) => SOME (Intfunc.onefunc (0,Rat.one)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
875 |
|(_,eq::oeqs) => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
876 |
(case vs inter (Intfunc.dom eq) of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
877 |
[] => NONE |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
878 |
| v::_ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
879 |
if Intfunc.defined eq v |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
880 |
then |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
881 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
882 |
val c = Intfunc.apply eq v |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
883 |
val vdef = int_lincomb_cmul (Rat.neg (Rat.inv c)) eq |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
884 |
fun eliminate eqn = if not (Intfunc.defined eqn v) then eqn |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
885 |
else int_lincomb_add (int_lincomb_cmul (Intfunc.apply eqn v) vdef) eqn |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
886 |
in (case solve (vs \ v,map eliminate oeqs) of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
887 |
NONE => NONE |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
888 |
| SOME soln => SOME (Intfunc.update (v, evaluate soln (Intfunc.undefine v vdef)) soln)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
889 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
890 |
else NONE) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
891 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
892 |
fun combinations k l = if k = 0 then [[]] else |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
893 |
case l of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
894 |
[] => [] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
895 |
| h::t => map (cons h) (combinations (k - 1) t) @ combinations k t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
896 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
897 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
898 |
fun forall2 p l1 l2 = case (l1,l2) of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
899 |
([],[]) => true |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
900 |
| (h1::t1,h2::t2) => p h1 h2 andalso forall2 p t1 t2 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
901 |
| _ => false; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
902 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
903 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
904 |
fun vertices vs eqs = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
905 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
906 |
fun vertex cmb = case solve(vs,cmb) of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
907 |
NONE => NONE |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
908 |
| SOME soln => SOME (map (fn v => Intfunc.tryapplyd soln v Rat.zero) vs) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
909 |
val rawvs = map_filter vertex (combinations (length vs) eqs) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
910 |
val unset = filter (forall (fn c => c >=/ Rat.zero)) rawvs |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
911 |
in fold_rev (insert (uncurry (forall2 (curry op =/)))) unset [] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
912 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
913 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
914 |
fun subsumes l m = forall2 (fn x => fn y => Rat.abs x <=/ Rat.abs y) l m |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
915 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
916 |
fun subsume todo dun = case todo of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
917 |
[] => dun |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
918 |
|v::ovs => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
919 |
let val dun' = if exists (fn w => subsumes w v) dun then dun |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
920 |
else v::(filter (fn w => not(subsumes v w)) dun) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
921 |
in subsume ovs dun' |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
922 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
923 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
924 |
fun match_mp PQ P = P RS PQ; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
925 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
926 |
fun cterm_of_rat x = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
927 |
let val (a, b) = Rat.quotient_of_rat x |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
928 |
in |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
929 |
if b = 1 then Numeral.mk_cnumber @{ctyp "real"} a |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
930 |
else Thm.capply (Thm.capply @{cterm "op / :: real => _"} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
931 |
(Numeral.mk_cnumber @{ctyp "real"} a)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
932 |
(Numeral.mk_cnumber @{ctyp "real"} b) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
933 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
934 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
935 |
fun norm_cmul_rule c th = instantiate' [] [SOME (cterm_of_rat c)] (th RS @{thm norm_cmul_rule_thm}); |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
936 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
937 |
fun norm_add_rule th1 th2 = [th1, th2] MRS @{thm norm_add_rule_thm}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
938 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
939 |
(* I think here the static context should be sufficient!! *) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
940 |
fun inequality_canon_rule ctxt = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
941 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
942 |
(* FIXME : Should be computed statically!! *) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
943 |
val real_poly_conv = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
944 |
Normalizer.semiring_normalize_wrapper ctxt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
945 |
(valOf (NormalizerData.match ctxt @{cterm "(0::real) + 1"})) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
946 |
in fconv_rule (arg_conv ((rewr_conv @{thm ge_iff_diff_ge_0}) then_conv arg_conv (field_comp_conv then_conv real_poly_conv))) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
947 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
948 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
949 |
fun absc cv ct = case term_of ct of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
950 |
Abs (v,_, _) => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
951 |
let val (x,t) = Thm.dest_abs (SOME v) ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
952 |
in Thm.abstract_rule ((fst o dest_Free o term_of) x) x (cv t) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
953 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
954 |
| _ => all_conv ct; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
955 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
956 |
fun sub_conv cv ct = (comb_conv cv else_conv absc cv) ct; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
957 |
fun botc1 conv ct = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
958 |
((sub_conv (botc1 conv)) then_conv (conv else_conv all_conv)) ct; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
959 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
960 |
fun rewrs_conv eqs ct = first_conv (map rewr_conv eqs) ct; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
961 |
val apply_pth1 = rewr_conv @{thm pth_1}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
962 |
val apply_pth2 = rewr_conv @{thm pth_2}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
963 |
val apply_pth3 = rewr_conv @{thm pth_3}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
964 |
val apply_pth4 = rewrs_conv @{thms pth_4}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
965 |
val apply_pth5 = rewr_conv @{thm pth_5}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
966 |
val apply_pth6 = rewr_conv @{thm pth_6}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
967 |
val apply_pth7 = rewrs_conv @{thms pth_7}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
968 |
val apply_pth8 = rewr_conv @{thm pth_8} then_conv arg1_conv field_comp_conv then_conv (try_conv (rewr_conv (mk_meta_eq @{thm vector_smult_lzero}))); |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
969 |
val apply_pth9 = rewrs_conv @{thms pth_9} then_conv arg1_conv (arg1_conv field_comp_conv); |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
970 |
val apply_ptha = rewr_conv @{thm pth_a}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
971 |
val apply_pthb = rewrs_conv @{thms pth_b}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
972 |
val apply_pthc = rewrs_conv @{thms pth_c}; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
973 |
val apply_pthd = try_conv (rewr_conv @{thm pth_d}); |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
974 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
975 |
fun headvector t = case t of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
976 |
Const(@{const_name plus}, Type("fun",[Type("Finite_Cartesian_Product.^",_),_]))$ |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
977 |
(Const(@{const_name vector_scalar_mult}, _)$l$v)$r => v |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
978 |
| Const(@{const_name vector_scalar_mult}, _)$l$v => v |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
979 |
| _ => error "headvector: non-canonical term" |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
980 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
981 |
fun vector_cmul_conv ct = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
982 |
((apply_pth5 then_conv arg1_conv field_comp_conv) else_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
983 |
(apply_pth6 then_conv binop_conv vector_cmul_conv)) ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
984 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
985 |
fun vector_add_conv ct = apply_pth7 ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
986 |
handle CTERM _ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
987 |
(apply_pth8 ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
988 |
handle CTERM _ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
989 |
(case term_of ct of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
990 |
Const(@{const_name plus},_)$lt$rt => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
991 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
992 |
val l = headvector lt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
993 |
val r = headvector rt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
994 |
in (case TermOrd.fast_term_ord (l,r) of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
995 |
LESS => (apply_pthb then_conv arg_conv vector_add_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
996 |
then_conv apply_pthd) ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
997 |
| GREATER => (apply_pthc then_conv arg_conv vector_add_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
998 |
then_conv apply_pthd) ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
999 |
| EQUAL => (apply_pth9 then_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1000 |
((apply_ptha then_conv vector_add_conv) else_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1001 |
arg_conv vector_add_conv then_conv apply_pthd)) ct) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1002 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1003 |
| _ => reflexive ct)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1004 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1005 |
fun vector_canon_conv ct = case term_of ct of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1006 |
Const(@{const_name plus},_)$_$_ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1007 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1008 |
val ((p,l),r) = Thm.dest_comb ct |>> Thm.dest_comb |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1009 |
val lth = vector_canon_conv l |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1010 |
val rth = vector_canon_conv r |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1011 |
val th = Drule.binop_cong_rule p lth rth |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1012 |
in fconv_rule (arg_conv vector_add_conv) th end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1013 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1014 |
| Const(@{const_name vector_scalar_mult}, _)$_$_ => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1015 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1016 |
val (p,r) = Thm.dest_comb ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1017 |
val rth = Drule.arg_cong_rule p (vector_canon_conv r) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1018 |
in fconv_rule (arg_conv (apply_pth4 else_conv vector_cmul_conv)) rth |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1019 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1020 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1021 |
| Const(@{const_name minus},_)$_$_ => (apply_pth2 then_conv vector_canon_conv) ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1022 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1023 |
| Const(@{const_name uminus},_)$_ => (apply_pth3 then_conv vector_canon_conv) ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1024 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1025 |
| Const(@{const_name vec},_)$n => |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1026 |
let val n = Thm.dest_arg ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1027 |
in if is_ratconst n andalso not (dest_ratconst n =/ Rat.zero) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1028 |
then reflexive ct else apply_pth1 ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1029 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1030 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1031 |
| _ => apply_pth1 ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1032 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1033 |
fun norm_canon_conv ct = case term_of ct of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1034 |
Const(@{const_name norm},_)$_ => arg_conv vector_canon_conv ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1035 |
| _ => raise CTERM ("norm_canon_conv", [ct]) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1036 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1037 |
fun fold_rev2 f [] [] z = z |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1038 |
| fold_rev2 f (x::xs) (y::ys) z = f x y (fold_rev2 f xs ys z) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1039 |
| fold_rev2 f _ _ _ = raise UnequalLengths; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1040 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1041 |
fun int_flip v eq = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1042 |
if Intfunc.defined eq v |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1043 |
then Intfunc.update (v, Rat.neg (Intfunc.apply eq v)) eq else eq; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1044 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1045 |
local |
29843 | 1046 |
val pth_zero = @{thm "norm_0"} |
29841
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1047 |
val tv_n = (hd o tl o dest_ctyp o ctyp_of_term o dest_arg o dest_arg1 o dest_arg o cprop_of) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1048 |
pth_zero |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1049 |
val concl = dest_arg o cprop_of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1050 |
fun real_vector_combo_prover ctxt translator (nubs,ges,gts) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1051 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1052 |
(* FIXME: Should be computed statically!!*) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1053 |
val real_poly_conv = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1054 |
Normalizer.semiring_normalize_wrapper ctxt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1055 |
(valOf (NormalizerData.match ctxt @{cterm "(0::real) + 1"})) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1056 |
val sources = map (dest_arg o dest_arg1 o concl) nubs |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1057 |
val rawdests = fold_rev (find_normedterms o dest_arg o concl) (ges @ gts) [] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1058 |
val _ = if not (forall fst rawdests) then error "real_vector_combo_prover: Sanity check" |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1059 |
else () |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1060 |
val dests = distinct (op aconvc) (map snd rawdests) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1061 |
val srcfuns = map vector_lincomb sources |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1062 |
val destfuns = map vector_lincomb dests |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1063 |
val vvs = fold_rev (curry (gen_union op aconvc) o Ctermfunc.dom) (srcfuns @ destfuns) [] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1064 |
val n = length srcfuns |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1065 |
val nvs = 1 upto n |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1066 |
val srccombs = srcfuns ~~ nvs |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1067 |
fun consider d = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1068 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1069 |
fun coefficients x = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1070 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1071 |
val inp = if Ctermfunc.defined d x then Intfunc.onefunc (0, Rat.neg(Ctermfunc.apply d x)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1072 |
else Intfunc.undefined |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1073 |
in fold_rev (fn (f,v) => fn g => if Ctermfunc.defined f x then Intfunc.update (v, Ctermfunc.apply f x) g else g) srccombs inp |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1074 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1075 |
val equations = map coefficients vvs |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1076 |
val inequalities = map (fn n => Intfunc.onefunc (n,Rat.one)) nvs |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1077 |
fun plausiblevertices f = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1078 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1079 |
val flippedequations = map (fold_rev int_flip f) equations |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1080 |
val constraints = flippedequations @ inequalities |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1081 |
val rawverts = vertices nvs constraints |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1082 |
fun check_solution v = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1083 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1084 |
val f = fold_rev2 (curry Intfunc.update) nvs v (Intfunc.onefunc (0, Rat.one)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1085 |
in forall (fn e => evaluate f e =/ Rat.zero) flippedequations |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1086 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1087 |
val goodverts = filter check_solution rawverts |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1088 |
val signfixups = map (fn n => if n mem_int f then ~1 else 1) nvs |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1089 |
in map (map2 (fn s => fn c => Rat.rat_of_int s */ c) signfixups) goodverts |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1090 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1091 |
val allverts = fold_rev append (map plausiblevertices (allsubsets nvs)) [] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1092 |
in subsume allverts [] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1093 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1094 |
fun compute_ineq v = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1095 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1096 |
val ths = map_filter (fn (v,t) => if v =/ Rat.zero then NONE |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1097 |
else SOME(norm_cmul_rule v t)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1098 |
(v ~~ nubs) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1099 |
in inequality_canon_rule ctxt (end_itlist norm_add_rule ths) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1100 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1101 |
val ges' = map_filter (try compute_ineq) (fold_rev (append o consider) destfuns []) @ |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1102 |
map (inequality_canon_rule ctxt) nubs @ ges |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1103 |
val zerodests = filter |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1104 |
(fn t => null (Ctermfunc.dom (vector_lincomb t))) (map snd rawdests) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1105 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1106 |
in RealArith.real_linear_prover translator |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1107 |
(map (fn t => instantiate ([(tv_n,(hd o tl o dest_ctyp o ctyp_of_term) t)],[]) pth_zero) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1108 |
zerodests, |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1109 |
map (fconv_rule (once_depth_conv (norm_canon_conv) then_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1110 |
arg_conv (arg_conv real_poly_conv))) ges', |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1111 |
map (fconv_rule (once_depth_conv (norm_canon_conv) then_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1112 |
arg_conv (arg_conv real_poly_conv))) gts) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1113 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1114 |
in val real_vector_combo_prover = real_vector_combo_prover |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1115 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1116 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1117 |
local |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1118 |
val pth = @{thm norm_imp_pos_and_ge} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1119 |
val norm_mp = match_mp pth |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1120 |
val concl = dest_arg o cprop_of |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1121 |
fun conjunct1 th = th RS @{thm conjunct1} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1122 |
fun conjunct2 th = th RS @{thm conjunct2} |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1123 |
fun C f x y = f y x |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1124 |
fun real_vector_ineq_prover ctxt translator (ges,gts) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1125 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1126 |
(* val _ = error "real_vector_ineq_prover: pause" *) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1127 |
val ntms = fold_rev find_normedterms (map (dest_arg o concl) (ges @ gts)) [] |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1128 |
val lctab = vector_lincombs (map snd (filter (not o fst) ntms)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1129 |
val (fxns, ctxt') = Variable.variant_fixes (replicate (length lctab) "x") ctxt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1130 |
fun mk_norm t = capply (instantiate_cterm' [SOME (ctyp_of_term t)] [] @{cpat "norm :: (?'a :: norm) => real"}) t |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1131 |
fun mk_equals l r = capply (capply (instantiate_cterm' [SOME (ctyp_of_term l)] [] @{cpat "op == :: ?'a =>_"}) l) r |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1132 |
val asl = map2 (fn (t,_) => fn n => assume (mk_equals (mk_norm t) (cterm_of (ProofContext.theory_of ctxt') (Free(n,@{typ real}))))) lctab fxns |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1133 |
val replace_conv = try_conv (rewrs_conv asl) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1134 |
val replace_rule = fconv_rule (funpow 2 arg_conv (replacenegnorms replace_conv)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1135 |
val ges' = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1136 |
fold_rev (fn th => fn ths => conjunct1(norm_mp th)::ths) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1137 |
asl (map replace_rule ges) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1138 |
val gts' = map replace_rule gts |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1139 |
val nubs = map (conjunct2 o norm_mp) asl |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1140 |
val th1 = real_vector_combo_prover ctxt' translator (nubs,ges',gts') |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1141 |
val shs = filter (member (fn (t,th) => t aconvc cprop_of th) asl) (#hyps (crep_thm th1)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1142 |
val th11 = hd (Variable.export ctxt' ctxt [fold implies_intr shs th1]) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1143 |
val cps = map (swap o dest_equals) (cprems_of th11) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1144 |
val th12 = instantiate ([], cps) th11 |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1145 |
val th13 = fold (C implies_elim) (map (reflexive o snd) cps) th12; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1146 |
in hd (Variable.export ctxt' ctxt [th13]) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1147 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1148 |
in val real_vector_ineq_prover = real_vector_ineq_prover |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1149 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1150 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1151 |
local |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1152 |
val rawrule = fconv_rule (arg_conv (rewr_conv @{thm real_eq_0_iff_le_ge_0})) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1153 |
fun conj_pair th = (th RS @{thm conjunct1}, th RS @{thm conjunct2}) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1154 |
fun simple_cterm_ord t u = TermOrd.term_ord (term_of t, term_of u) = LESS; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1155 |
(* FIXME: Lookup in the context every time!!! Fix this !!!*) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1156 |
fun splitequation ctxt th acc = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1157 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1158 |
val real_poly_neg_conv = #neg |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1159 |
(Normalizer.semiring_normalizers_ord_wrapper ctxt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1160 |
(valOf (NormalizerData.match ctxt @{cterm "(0::real) + 1"})) simple_cterm_ord) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1161 |
val (th1,th2) = conj_pair(rawrule th) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1162 |
in th1::fconv_rule (arg_conv (arg_conv real_poly_neg_conv)) th2::acc |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1163 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1164 |
in fun real_vector_prover ctxt translator (eqs,ges,gts) = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1165 |
real_vector_ineq_prover ctxt translator |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1166 |
(fold_rev (splitequation ctxt) eqs ges,gts) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1167 |
end; |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1168 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1169 |
fun init_conv ctxt = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1170 |
Simplifier.rewrite (Simplifier.context ctxt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1171 |
(HOL_basic_ss addsimps ([@{thm vec_0}, @{thm vec_1}, @{thm dist_def}, @{thm diff_0_right}, @{thm right_minus}, @{thm diff_self}, @{thm norm_0}] @ @{thms arithmetic_simps} @ @{thms norm_pths}))) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1172 |
then_conv field_comp_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1173 |
then_conv nnf_conv |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1174 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1175 |
fun pure ctxt = RealArith.gen_prover_real_arith ctxt (real_vector_prover ctxt); |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1176 |
fun norm_arith ctxt ct = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1177 |
let |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1178 |
val ctxt' = Variable.declare_term (term_of ct) ctxt |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1179 |
val th = init_conv ctxt' ct |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1180 |
in equal_elim (Drule.arg_cong_rule @{cterm Trueprop} (symmetric th)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1181 |
(pure ctxt' (rhs_of th)) |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1182 |
end |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1183 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1184 |
fun norm_arith_tac ctxt = |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1185 |
clarify_tac HOL_cs THEN' |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1186 |
ObjectLogic.full_atomize_tac THEN' |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1187 |
CSUBGOAL ( fn (p,i) => rtac (norm_arith ctxt (Thm.dest_arg p )) i); |
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1188 |
|
86d94bb79226
A generic decision procedure for linear rea arithmetic and normed vector spaces
chaieb
parents:
diff
changeset
|
1189 |
end; |