diff -r 68a7acb5f22e -r fd19f77dcf60 src/FOLP/FOLP.thy --- a/src/FOLP/FOLP.thy Sat Sep 17 20:49:14 2005 +0200 +++ b/src/FOLP/FOLP.thy Sun Sep 18 14:25:48 2005 +0200 @@ -2,13 +2,88 @@ ID: $Id$ Author: Martin D Coen, Cambridge University Computer Laboratory Copyright 1992 University of Cambridge - -Classical First-Order Logic with Proofs *) -FOLP = IFOLP + +header {* Classical First-Order Logic with Proofs *} + +theory FOLP +imports IFOLP +uses + ("FOLP_lemmas.ML") ("hypsubst.ML") ("classical.ML") + ("simp.ML") ("intprover.ML") ("simpdata.ML") +begin + consts cla :: "[p=>p]=>p" -rules - classical "(!!x. x:~P ==> f(x):P) ==> cla(f):P" +axioms + classical: "(!!x. x:~P ==> f(x):P) ==> cla(f):P" + +ML {* use_legacy_bindings (the_context ()) *} + +use "FOLP_lemmas.ML" + +use "hypsubst.ML" +use "classical.ML" (* Patched 'cos matching won't instantiate proof *) +use "simp.ML" (* Patched 'cos matching won't instantiate proof *) + +ML {* + +(*** Applying HypsubstFun to generate hyp_subst_tac ***) + +structure Hypsubst_Data = + struct + (*Take apart an equality judgement; otherwise raise Match!*) + fun dest_eq (Const("Proof",_) $ (Const("op =",_) $ t $ u) $ _) = (t,u); + + val imp_intr = impI + + (*etac rev_cut_eq moves an equality to be the last premise. *) + val rev_cut_eq = prove_goal (the_context ()) + "[| p:a=b; !!x. x:a=b ==> f(x):R |] ==> ?p:R" + (fn prems => [ REPEAT(resolve_tac prems 1) ]); + + val rev_mp = rev_mp + val subst = subst + val sym = sym + val thin_refl = prove_goal (the_context ()) + "!!X. [|p:x=x; PROP W|] ==> PROP W" (K [atac 1]); + end; + +structure Hypsubst = HypsubstFun(Hypsubst_Data); +open Hypsubst; +*} + +use "intprover.ML" + +ML {* +(*** Applying ClassicalFun to create a classical prover ***) +structure Classical_Data = + struct + val sizef = size_of_thm + val mp = mp + val not_elim = notE + val swap = swap + val hyp_subst_tacs=[hyp_subst_tac] + end; + +structure Cla = ClassicalFun(Classical_Data); +open Cla; + +(*Propositional rules + -- iffCE might seem better, but in the examples in ex/cla + run about 7% slower than with iffE*) +val prop_cs = empty_cs addSIs [refl,TrueI,conjI,disjCI,impI,notI,iffI] + addSEs [conjE,disjE,impCE,FalseE,iffE]; + +(*Quantifier rules*) +val FOLP_cs = prop_cs addSIs [allI] addIs [exI,ex1I] + addSEs [exE,ex1E] addEs [allE]; + +val FOLP_dup_cs = prop_cs addSIs [allI] addIs [exCI,ex1I] + addSEs [exE,ex1E] addEs [all_dupE]; + +*} + +use "simpdata.ML" + end