--- a/src/HOL/Tools/res_clause.ML Fri Aug 17 23:10:39 2007 +0200
+++ b/src/HOL/Tools/res_clause.ML Fri Aug 17 23:10:41 2007 +0200
@@ -2,72 +2,93 @@
ID: $Id$
Copyright 2004 University of Cambridge
-ML data structure for storing/printing FOL clauses and arity clauses.
+Storing/printing FOL clauses and arity clauses.
Typed equality is treated differently.
*)
-(*FIXME: is this signature necessary? Or maybe define and open a Basic_ResClause?*)
(*FIXME: combine with res_hol_clause!*)
signature RES_CLAUSE =
- sig
- exception CLAUSE of string * term
- type arityClause and classrelClause
- datatype fol_type = AtomV of string
- | AtomF of string
- | Comp of string * fol_type list;
- datatype kind = Axiom | Conjecture;
- val name_of_kind : kind -> string
- type typ_var and type_literal
- val add_typs_aux : (typ_var * string list) list -> type_literal list * type_literal list
- val ascii_of : string -> string
- val tptp_pack : string list -> string
- val make_arity_clauses: theory -> (class list * arityClause list)
- val make_classrel_clauses: theory -> class list -> class list -> classrelClause list
- val clause_prefix : string
- val const_prefix : string
- val fixed_var_prefix : string
- val gen_tptp_cls : int * string * string * string list -> string
- val init : theory -> unit
- val isMeta : string -> bool
- val make_fixed_const : string -> string
- val make_fixed_type_const : string -> string
- val make_fixed_type_var : string -> string
+sig
+ val schematic_var_prefix: string
+ val fixed_var_prefix: string
+ val tvar_prefix: string
+ val tfree_prefix: string
+ val clause_prefix: string
+ val const_prefix: string
+ val tconst_prefix: string
+ val class_prefix: string
+ val union_all: ''a list list -> ''a list
+ val const_trans_table: string Symtab.table
+ val type_const_trans_table: string Symtab.table
+ val ascii_of: string -> string
+ val undo_ascii_of: string -> string
+ val paren_pack : string list -> string
+ val make_schematic_var : string * int -> string
val make_fixed_var : string -> string
val make_schematic_type_var : string * int -> string
- val make_schematic_var : string * int -> string
+ val make_fixed_type_var : string -> string
+ val dfg_format: bool ref
+ val make_fixed_const : string -> string
+ val make_fixed_type_const : string -> string
val make_type_class : string -> string
- val mk_typ_var_sort : Term.typ -> typ_var * sort
- val paren_pack : string list -> string
- val schematic_var_prefix : string
+ datatype kind = Axiom | Conjecture
+ val name_of_kind : kind -> string
+ type axiom_name = string
+ datatype typ_var = FOLTVar of indexname | FOLTFree of string
+ datatype fol_type =
+ AtomV of string
+ | AtomF of string
+ | Comp of string * fol_type list
val string_of_fol_type : fol_type -> string
- val tconst_prefix : string
- val tfree_prefix : string
- val tvar_prefix : string
- val tptp_arity_clause : arityClause -> string
- val tptp_classrelClause : classrelClause -> string
- val tptp_of_typeLit : type_literal -> string
- val tptp_tfree_clause : string -> string
- val union_all : ''a list list -> ''a list
- val writeln_strs: TextIO.outstream -> TextIO.vector list -> unit
+ datatype type_literal = LTVar of string * string | LTFree of string * string
+ val mk_typ_var_sort: typ -> typ_var * sort
+ exception CLAUSE of string * term
+ val init : theory -> unit
+ val isMeta : string -> bool
+ val add_typs_aux : (typ_var * string list) list -> type_literal list * type_literal list
+ val get_tvar_strs: (typ_var * sort) list -> string list
+ datatype arLit =
+ TConsLit of class * string * string list
+ | TVarLit of class * string
+ datatype arityClause = ArityClause of
+ {axiom_name: axiom_name,
+ kind: kind,
+ conclLit: arLit,
+ premLits: arLit list}
+ datatype classrelClause = ClassrelClause of
+ {axiom_name: axiom_name,
+ subclass: class,
+ superclass: class}
+ val make_classrel_clauses: theory -> class list -> class list -> classrelClause list
+ val make_arity_clauses: theory -> string list -> class list -> class list * arityClause list
+ val add_type_sort_preds: (typ_var * string list) * int Symtab.table -> int Symtab.table
+ val add_classrelClause_preds : classrelClause * int Symtab.table -> int Symtab.table
+ val class_of_arityLit: arLit -> class
+ val add_arityClause_preds: arityClause * int Symtab.table -> int Symtab.table
+ val add_foltype_funcs: fol_type * int Symtab.table -> int Symtab.table
+ val add_arityClause_funcs: arityClause * int Symtab.table -> int Symtab.table
+ val init_functab: int Symtab.table
+ val writeln_strs: TextIO.outstream -> string list -> unit
val dfg_sign: bool -> string -> string
val dfg_of_typeLit: type_literal -> string
- val get_tvar_strs: (typ_var * sort) list -> string list
val gen_dfg_cls: int * string * string * string * string list -> string
- val add_foltype_funcs: fol_type * int Symtab.table -> int Symtab.table
- val add_arityClause_funcs: arityClause * int Symtab.table -> int Symtab.table
- val add_arityClause_preds: arityClause * int Symtab.table -> int Symtab.table
- val add_classrelClause_preds : classrelClause * int Symtab.table -> int Symtab.table
- val dfg_tfree_clause : string -> string
+ val string_of_preds: (string * Int.int) list -> string
+ val string_of_funcs: (string * int) list -> string
+ val string_of_symbols: string -> string -> string
val string_of_start: string -> string
val string_of_descrip : string -> string
- val string_of_symbols: string -> string -> string
- val string_of_funcs: (string * int) list -> string
- val string_of_preds: (string * Int.int) list -> string
+ val dfg_tfree_clause : string -> string
val dfg_classrelClause: classrelClause -> string
val dfg_arity_clause: arityClause -> string
-end;
+ val tptp_sign: bool -> string -> string
+ val tptp_of_typeLit : type_literal -> string
+ val gen_tptp_cls : int * string * kind * string list -> string
+ val tptp_tfree_clause : string -> string
+ val tptp_arity_clause : arityClause -> string
+ val tptp_classrelClause : classrelClause -> string
+end
-structure ResClause =
+structure ResClause: RES_CLAUSE =
struct
val schematic_var_prefix = "V_";
@@ -76,48 +97,48 @@
val tvar_prefix = "T_";
val tfree_prefix = "t_";
-val clause_prefix = "cls_";
-val arclause_prefix = "clsarity_"
+val clause_prefix = "cls_";
+val arclause_prefix = "clsarity_"
val clrelclause_prefix = "clsrel_";
val const_prefix = "c_";
-val tconst_prefix = "tc_";
-val class_prefix = "class_";
+val tconst_prefix = "tc_";
+val class_prefix = "class_";
fun union_all xss = foldl (op union) [] xss;
(*Provide readable names for the more common symbolic functions*)
val const_trans_table =
Symtab.make [("op =", "equal"),
- (@{const_name HOL.less_eq}, "lessequals"),
- (@{const_name HOL.less}, "less"),
- ("op &", "and"),
- ("op |", "or"),
- (@{const_name HOL.plus}, "plus"),
- (@{const_name HOL.minus}, "minus"),
- (@{const_name HOL.times}, "times"),
- (@{const_name Divides.div}, "div"),
- (@{const_name HOL.divide}, "divide"),
- ("op -->", "implies"),
- ("{}", "emptyset"),
- ("op :", "in"),
- ("op Un", "union"),
- ("op Int", "inter"),
- ("List.append", "append"),
- ("ATP_Linkup.fequal", "fequal"),
- ("ATP_Linkup.COMBI", "COMBI"),
- ("ATP_Linkup.COMBK", "COMBK"),
- ("ATP_Linkup.COMBB", "COMBB"),
- ("ATP_Linkup.COMBC", "COMBC"),
- ("ATP_Linkup.COMBS", "COMBS"),
- ("ATP_Linkup.COMBB'", "COMBB_e"),
- ("ATP_Linkup.COMBC'", "COMBC_e"),
- ("ATP_Linkup.COMBS'", "COMBS_e")];
+ (@{const_name HOL.less_eq}, "lessequals"),
+ (@{const_name HOL.less}, "less"),
+ ("op &", "and"),
+ ("op |", "or"),
+ (@{const_name HOL.plus}, "plus"),
+ (@{const_name HOL.minus}, "minus"),
+ (@{const_name HOL.times}, "times"),
+ (@{const_name Divides.div}, "div"),
+ (@{const_name HOL.divide}, "divide"),
+ ("op -->", "implies"),
+ ("{}", "emptyset"),
+ ("op :", "in"),
+ ("op Un", "union"),
+ ("op Int", "inter"),
+ ("List.append", "append"),
+ ("ATP_Linkup.fequal", "fequal"),
+ ("ATP_Linkup.COMBI", "COMBI"),
+ ("ATP_Linkup.COMBK", "COMBK"),
+ ("ATP_Linkup.COMBB", "COMBB"),
+ ("ATP_Linkup.COMBC", "COMBC"),
+ ("ATP_Linkup.COMBS", "COMBS"),
+ ("ATP_Linkup.COMBB'", "COMBB_e"),
+ ("ATP_Linkup.COMBC'", "COMBC_e"),
+ ("ATP_Linkup.COMBS'", "COMBS_e")];
val type_const_trans_table =
Symtab.make [("*", "prod"),
- ("+", "sum"),
- ("~=>", "map")];
+ ("+", "sum"),
+ ("~=>", "map")];
(*Escaping of special characters.
Alphanumeric characters are left unchanged.
@@ -132,9 +153,9 @@
fun ascii_of_c c =
if Char.isAlphaNum c then String.str c
else if c = #"_" then "__"
- else if #" " <= c andalso c <= #"/"
+ else if #" " <= c andalso c <= #"/"
then "_" ^ String.str (Char.chr (Char.ord c + A_minus_space))
- else if Char.isPrint c
+ else if Char.isPrint c
then ("_" ^ stringN_of_int 3 (Char.ord c)) (*fixed width, in case more digits follow*)
else ""
@@ -148,12 +169,12 @@
| undo_ascii_aux rcs [#"_"] = undo_ascii_aux (#"_"::rcs) [] (*ERROR*)
(*Three types of _ escapes: __, _A to _P, _nnn*)
| undo_ascii_aux rcs (#"_" :: #"_" :: cs) = undo_ascii_aux (#"_"::rcs) cs
- | undo_ascii_aux rcs (#"_" :: c :: cs) =
+ | undo_ascii_aux rcs (#"_" :: c :: cs) =
if #"A" <= c andalso c<= #"P" (*translation of #" " to #"/"*)
then undo_ascii_aux (Char.chr(Char.ord c - A_minus_space) :: rcs) cs
- else
+ else
let val digits = List.take (c::cs, 3) handle Subscript => []
- in
+ in
case Int.fromString (String.implode digits) of
NONE => undo_ascii_aux (c:: #"_"::rcs) cs (*ERROR*)
| SOME n => undo_ascii_aux (Char.chr n :: rcs) (List.drop (cs, 2))
@@ -181,7 +202,7 @@
fun make_schematic_var v = schematic_var_prefix ^ (ascii_of_indexname v);
fun make_fixed_var x = fixed_var_prefix ^ (ascii_of x);
-fun make_schematic_type_var (x,i) =
+fun make_schematic_type_var (x,i) =
tvar_prefix ^ (ascii_of_indexname (trim_type_var x,i));
fun make_fixed_type_var x = tfree_prefix ^ (ascii_of (trim_type_var x));
@@ -190,7 +211,7 @@
(*32-bit hash,so we expect no collisions unless there are around 65536 long identifiers...*)
fun controlled_length s =
- if size s > 60 andalso !dfg_format
+ if size s > 60 andalso !dfg_format
then Word.toString (Polyhash.hashw_string(s,0w0))
else s;
@@ -199,7 +220,7 @@
SOME c' => c'
| NONE => controlled_length (ascii_of c);
-fun lookup_type_const c =
+fun lookup_type_const c =
case Symtab.lookup type_const_trans_table c of
SOME c' => c'
| NONE => controlled_length (ascii_of c);
@@ -227,14 +248,14 @@
(*FIXME: give the constructors more sensible names*)
datatype fol_type = AtomV of string
- | AtomF of string
- | Comp of string * fol_type list;
+ | AtomF of string
+ | Comp of string * fol_type list;
fun string_of_fol_type (AtomV x) = x
| string_of_fol_type (AtomF x) = x
- | string_of_fol_type (Comp(tcon,tps)) =
+ | string_of_fol_type (Comp(tcon,tps)) =
tcon ^ (paren_pack (map string_of_fol_type tps));
-
+
(*First string is the type class; the second is a TVar or TFfree*)
datatype type_literal = LTVar of string * string | LTFree of string * string;
@@ -253,30 +274,28 @@
(*Initialize the type suppression mechanism with the current theory before
producing any clauses!*)
fun init thy = (const_typargs := Sign.const_typargs thy);
-
+
(*Flatten a type to a fol_type while accumulating sort constraints on the TFrees and
- TVars it contains.*)
-fun type_of (Type (a, Ts)) =
- let val (folTyps, ts) = types_of Ts
- val t = make_fixed_type_const a
+ TVars it contains.*)
+fun type_of (Type (a, Ts)) =
+ let val (folTyps, ts) = types_of Ts
+ val t = make_fixed_type_const a
in (Comp(t,folTyps), ts) end
- | type_of (TFree (a,s)) = (AtomF(make_fixed_type_var a), [(FOLTFree a, s)])
+ | type_of (TFree (a,s)) = (AtomF(make_fixed_type_var a), [(FOLTFree a, s)])
| type_of (TVar (v, s)) = (AtomV(make_schematic_type_var v), [(FOLTVar v, s)])
and types_of Ts =
let val (folTyps,ts) = ListPair.unzip (map type_of Ts)
in (folTyps, union_all ts) end;
-fun const_types_of (c,T) = types_of (!const_typargs (c,T));
-
(* Any variables created via the METAHYPS tactical should be treated as
universal vars, although it is represented as "Free(...)" by Isabelle *)
val isMeta = String.isPrefix "METAHYP1_"
-(*Make literals for sorted type variables*)
+(*Make literals for sorted type variables*)
fun sorts_on_typs (_, []) = []
- | sorts_on_typs (v, s::ss) =
+ | sorts_on_typs (v, s::ss) =
let val sorts = sorts_on_typs (v, ss)
in
if s = "HOL.type" then sorts
@@ -291,40 +310,37 @@
(*Given a list of sorted type variables, return two separate lists.
The first is for TVars, the second for TFrees.*)
fun add_typs_aux [] = ([],[])
- | add_typs_aux ((FOLTVar indx, s) :: tss) =
+ | add_typs_aux ((FOLTVar indx, s) :: tss) =
let val vs = sorts_on_typs (FOLTVar indx, s)
- val (vss,fss) = add_typs_aux tss
+ val (vss,fss) = add_typs_aux tss
in (vs union vss, fss) end
| add_typs_aux ((FOLTFree x, s) :: tss) =
let val fs = sorts_on_typs (FOLTFree x, s)
- val (vss,fss) = add_typs_aux tss
+ val (vss,fss) = add_typs_aux tss
in (vss, fs union fss) end;
(** make axiom and conjecture clauses. **)
fun get_tvar_strs [] = []
- | get_tvar_strs ((FOLTVar indx,s)::tss) =
+ | get_tvar_strs ((FOLTVar indx,s)::tss) =
insert (op =) (make_schematic_type_var indx) (get_tvar_strs tss)
| get_tvar_strs((FOLTFree x,s)::tss) = get_tvar_strs tss
-
+
(**** Isabelle arities ****)
exception ARCLAUSE of string;
-
-type class = string;
-type tcons = string;
-datatype arLit = TConsLit of class * tcons * string list
+datatype arLit = TConsLit of class * string * string list
| TVarLit of class * string;
-
-datatype arityClause =
- ArityClause of {axiom_name: axiom_name,
- kind: kind,
- conclLit: arLit,
- premLits: arLit list};
+
+datatype arityClause =
+ ArityClause of {axiom_name: axiom_name,
+ kind: kind,
+ conclLit: arLit,
+ premLits: arLit list};
fun gen_TVars 0 = []
@@ -333,37 +349,37 @@
fun pack_sort(_,[]) = []
| pack_sort(tvar, "HOL.type"::srt) = pack_sort(tvar, srt) (*IGNORE sort "type"*)
| pack_sort(tvar, cls::srt) = (cls, tvar) :: pack_sort(tvar, srt);
-
+
(*Arity of type constructor tcon :: (arg1,...,argN)res*)
fun make_axiom_arity_clause (tcons, axiom_name, (cls,args)) =
let val tvars = gen_TVars (length args)
val tvars_srts = ListPair.zip (tvars,args)
in
- ArityClause {axiom_name = axiom_name, kind = Axiom,
- conclLit = TConsLit (cls, make_fixed_type_const tcons, tvars),
+ ArityClause {axiom_name = axiom_name, kind = Axiom,
+ conclLit = TConsLit (cls, make_fixed_type_const tcons, tvars),
premLits = map TVarLit (union_all(map pack_sort tvars_srts))}
end;
(**** Isabelle class relations ****)
-datatype classrelClause =
- ClassrelClause of {axiom_name: axiom_name,
- subclass: class,
- superclass: class};
-
+datatype classrelClause =
+ ClassrelClause of {axiom_name: axiom_name,
+ subclass: class,
+ superclass: class};
+
(*Generate all pairs (sub,super) such that sub is a proper subclass of super in theory thy.*)
fun class_pairs thy [] supers = []
| class_pairs thy subs supers =
let val class_less = Sorts.class_less(Sign.classes_of thy)
- fun add_super sub (super,pairs) =
- if class_less (sub,super) then (sub,super)::pairs else pairs
- fun add_supers (sub,pairs) = foldl (add_super sub) pairs supers
+ fun add_super sub (super,pairs) =
+ if class_less (sub,super) then (sub,super)::pairs else pairs
+ fun add_supers (sub,pairs) = foldl (add_super sub) pairs supers
in foldl add_supers [] subs end;
fun make_classrelClause (sub,super) =
ClassrelClause {axiom_name = clrelclause_prefix ^ ascii_of sub ^ "_" ^ ascii_of super,
- subclass = make_type_class sub,
+ subclass = make_type_class sub,
superclass = make_type_class super};
fun make_classrel_clauses thy subs supers =
@@ -377,23 +393,23 @@
arity_clause seen n (tcons,ars)
| arity_clause seen n (tcons, (ar as (class,_)) :: ars) =
if class mem_string seen then (*multiple arities for the same tycon, class pair*)
- make_axiom_arity_clause (tcons, lookup_type_const tcons ^ "_" ^ class ^ "_" ^ Int.toString n, ar) ::
- arity_clause seen (n+1) (tcons,ars)
+ make_axiom_arity_clause (tcons, lookup_type_const tcons ^ "_" ^ class ^ "_" ^ Int.toString n, ar) ::
+ arity_clause seen (n+1) (tcons,ars)
else
- make_axiom_arity_clause (tcons, lookup_type_const tcons ^ "_" ^ class, ar) ::
- arity_clause (class::seen) n (tcons,ars)
+ make_axiom_arity_clause (tcons, lookup_type_const tcons ^ "_" ^ class, ar) ::
+ arity_clause (class::seen) n (tcons,ars)
fun multi_arity_clause [] = []
| multi_arity_clause ((tcons,ars) :: tc_arlists) =
- arity_clause [] 1 (tcons, ars) @ multi_arity_clause tc_arlists
+ arity_clause [] 1 (tcons, ars) @ multi_arity_clause tc_arlists
(*Generate all pairs (tycon,class,sorts) such that tycon belongs to class in theory thy
provided its arguments have the corresponding sorts.*)
fun type_class_pairs thy tycons classes =
let val alg = Sign.classes_of thy
fun domain_sorts (tycon,class) = Sorts.mg_domain alg tycon [class]
- fun add_class tycon (class,pairs) =
- (class, domain_sorts(tycon,class))::pairs
+ fun add_class tycon (class,pairs) =
+ (class, domain_sorts(tycon,class))::pairs
handle Sorts.CLASS_ERROR _ => pairs
fun try_classes tycon = (tycon, foldl (add_class tycon) [] classes)
in map try_classes tycons end;
@@ -403,24 +419,24 @@
| iter_type_class_pairs thy tycons classes =
let val cpairs = type_class_pairs thy tycons classes
val newclasses = union_all (union_all (union_all (map (map #2 o #2) cpairs))) \\ classes \\ HOLogic.typeS
- val _ = if null newclasses then ()
+ val _ = if null newclasses then ()
else Output.debug (fn _ => "New classes: " ^ space_implode ", " newclasses)
- val (classes', cpairs') = iter_type_class_pairs thy tycons newclasses
+ val (classes', cpairs') = iter_type_class_pairs thy tycons newclasses
in (classes' union classes, cpairs' union cpairs) end;
-
+
fun make_arity_clauses thy tycons classes =
- let val (classes', cpairs) = iter_type_class_pairs thy tycons classes
+ let val (classes', cpairs) = iter_type_class_pairs thy tycons classes
in (classes', multi_arity_clause cpairs) end;
(**** Find occurrences of predicates in clauses ****)
-(*FIXME: multiple-arity checking doesn't work, as update_new is the wrong
+(*FIXME: multiple-arity checking doesn't work, as update_new is the wrong
function (it flags repeated declarations of a function, even with the same arity)*)
fun update_many (tab, keypairs) = foldl (uncurry Symtab.update) tab keypairs;
-fun add_type_sort_preds ((FOLTVar indx,s), preds) =
+fun add_type_sort_preds ((FOLTVar indx,s), preds) =
update_many (preds, map pred_of_sort (sorts_on_typs (FOLTVar indx, s)))
| add_type_sort_preds ((FOLTFree x,s), preds) =
update_many (preds, map pred_of_sort (sorts_on_typs (FOLTFree x, s)));
@@ -440,12 +456,12 @@
fun add_foltype_funcs (AtomV _, funcs) = funcs
| add_foltype_funcs (AtomF a, funcs) = Symtab.update (a,0) funcs
- | add_foltype_funcs (Comp(a,tys), funcs) =
+ | add_foltype_funcs (Comp(a,tys), funcs) =
foldl add_foltype_funcs (Symtab.update (a, length tys) funcs) tys;
(*TFrees are recorded as constants*)
fun add_type_sort_funcs ((FOLTVar _, _), funcs) = funcs
- | add_type_sort_funcs ((FOLTFree a, _), funcs) =
+ | add_type_sort_funcs ((FOLTFree a, _), funcs) =
Symtab.update (make_fixed_type_var a, 0) funcs
fun add_arityClause_funcs (ArityClause {conclLit,...}, funcs) =
@@ -458,32 +474,31 @@
(**** String-oriented operations ****)
-fun string_of_clausename (cls_id,ax_name) =
+fun string_of_clausename (cls_id,ax_name) =
clause_prefix ^ ascii_of ax_name ^ "_" ^ Int.toString cls_id;
-fun string_of_type_clsname (cls_id,ax_name,idx) =
+fun string_of_type_clsname (cls_id,ax_name,idx) =
string_of_clausename (cls_id,ax_name) ^ "_tcs" ^ (Int.toString idx);
-(*Write a list of strings to a file*)
-fun writeln_strs os = List.app (fn s => TextIO.output (os,s));
+fun writeln_strs os = List.app (fn s => TextIO.output (os, s));
-
+
(**** Producing DFG files ****)
(*Attach sign in DFG syntax: false means negate.*)
fun dfg_sign true s = s
- | dfg_sign false s = "not(" ^ s ^ ")"
+ | dfg_sign false s = "not(" ^ s ^ ")"
fun dfg_of_typeLit (LTVar (s,ty)) = "not(" ^ s ^ "(" ^ ty ^ "))"
| dfg_of_typeLit (LTFree (s,ty)) = s ^ "(" ^ ty ^ ")";
-
+
(*Enclose the clause body by quantifiers, if necessary*)
-fun dfg_forall [] body = body
+fun dfg_forall [] body = body
| dfg_forall vars body = "forall([" ^ commas vars ^ "],\n" ^ body ^ ")"
-fun gen_dfg_cls (cls_id, ax_name, knd, lits, vars) =
- "clause( %(" ^ knd ^ ")\n" ^
- dfg_forall vars ("or(" ^ lits ^ ")") ^ ",\n" ^
+fun gen_dfg_cls (cls_id, ax_name, knd, lits, vars) =
+ "clause( %(" ^ knd ^ ")\n" ^
+ dfg_forall vars ("or(" ^ lits ^ ")") ^ ",\n" ^
string_of_clausename (cls_id,ax_name) ^ ").\n\n";
fun string_of_arity (name, num) = "(" ^ name ^ "," ^ Int.toString num ^ ")"
@@ -494,13 +509,13 @@
fun string_of_funcs [] = ""
| string_of_funcs funcs = "functions[" ^ commas(map string_of_arity funcs) ^ "].\n" ;
-fun string_of_symbols predstr funcstr =
+fun string_of_symbols predstr funcstr =
"list_of_symbols.\n" ^ predstr ^ funcstr ^ "end_of_list.\n\n";
fun string_of_start name = "begin_problem(" ^ name ^ ").\n\n";
-fun string_of_descrip name =
- "list_of_descriptions.\nname({*" ^ name ^
+fun string_of_descrip name =
+ "list_of_descriptions.\nname({*" ^ name ^
"*}).\nauthor({*Isabelle*}).\nstatus(unknown).\ndescription({*auto-generated*}).\nend_of_list.\n\n"
fun dfg_tfree_clause tfree_lit =
@@ -510,20 +525,20 @@
dfg_sign true (make_type_class c ^ "(" ^ t ^ paren_pack args ^ ")")
| dfg_of_arLit (TVarLit (c,str)) =
dfg_sign false (make_type_class c ^ "(" ^ str ^ ")")
-
+
fun dfg_classrelLits sub sup = "not(" ^ sub ^ "(T)), " ^ sup ^ "(T)";
fun dfg_classrelClause (ClassrelClause {axiom_name,subclass,superclass,...}) =
"clause(forall([T],\nor( " ^ dfg_classrelLits subclass superclass ^ ")),\n" ^
axiom_name ^ ").\n\n";
-
+
fun string_of_ar axiom_name = arclause_prefix ^ ascii_of axiom_name;
-fun dfg_arity_clause (ArityClause{axiom_name,kind,conclLit,premLits,...}) =
+fun dfg_arity_clause (ArityClause{axiom_name,kind,conclLit,premLits,...}) =
let val TConsLit (_,_,tvars) = conclLit
val lits = map dfg_of_arLit (conclLit :: premLits)
in
- "clause( %(" ^ name_of_kind kind ^ ")\n" ^
+ "clause( %(" ^ name_of_kind kind ^ ")\n" ^
dfg_forall tvars ("or( " ^ commas lits ^ ")") ^ ",\n" ^
string_of_ar axiom_name ^ ").\n\n"
end;
@@ -537,28 +552,28 @@
fun tptp_of_typeLit (LTVar (s,ty)) = tptp_sign false (s ^ "(" ^ ty ^ ")")
| tptp_of_typeLit (LTFree (s,ty)) = tptp_sign true (s ^ "(" ^ ty ^ ")");
-
-fun gen_tptp_cls (cls_id,ax_name,knd,lits) =
- "cnf(" ^ string_of_clausename (cls_id,ax_name) ^ "," ^
+
+fun gen_tptp_cls (cls_id,ax_name,knd,lits) =
+ "cnf(" ^ string_of_clausename (cls_id,ax_name) ^ "," ^
name_of_kind knd ^ "," ^ tptp_pack lits ^ ").\n";
fun tptp_tfree_clause tfree_lit =
"cnf(" ^ "tfree_tcs," ^ "negated_conjecture" ^ "," ^ tptp_pack[tfree_lit] ^ ").\n";
-
+
fun tptp_of_arLit (TConsLit (c,t,args)) =
tptp_sign true (make_type_class c ^ "(" ^ t ^ paren_pack args ^ ")")
| tptp_of_arLit (TVarLit (c,str)) =
tptp_sign false (make_type_class c ^ "(" ^ str ^ ")")
-
-fun tptp_arity_clause (ArityClause{axiom_name,kind,conclLit,premLits,...}) =
- "cnf(" ^ string_of_ar axiom_name ^ "," ^ name_of_kind kind ^ "," ^
+
+fun tptp_arity_clause (ArityClause{axiom_name,kind,conclLit,premLits,...}) =
+ "cnf(" ^ string_of_ar axiom_name ^ "," ^ name_of_kind kind ^ "," ^
tptp_pack (map tptp_of_arLit (conclLit :: premLits)) ^ ").\n";
-fun tptp_classrelLits sub sup =
+fun tptp_classrelLits sub sup =
let val tvar = "(T)"
in tptp_pack [tptp_sign false (sub^tvar), tptp_sign true (sup^tvar)] end;
fun tptp_classrelClause (ClassrelClause {axiom_name,subclass,superclass,...}) =
- "cnf(" ^ axiom_name ^ ",axiom," ^ tptp_classrelLits subclass superclass ^ ").\n"
+ "cnf(" ^ axiom_name ^ ",axiom," ^ tptp_classrelLits subclass superclass ^ ").\n"
end;