src/FOLP/ex/Prolog.ML

--- a/src/FOLP/ex/Prolog.ML	Sat Jun 20 20:35:38 1998 +0200
+++ b/src/FOLP/ex/Prolog.ML	Mon Jun 22 15:09:59 1998 +0200
@@ -8,19 +8,19 @@
 
 open Prolog;
 
-goal Prolog.thy "app(a:b:c:Nil, d:e:Nil, ?x)";
+Goal "app(a:b:c:Nil, d:e:Nil, ?x)";
 by (resolve_tac [appNil,appCons] 1);
 by (resolve_tac [appNil,appCons] 1);
 by (resolve_tac [appNil,appCons] 1);
 by (resolve_tac [appNil,appCons] 1);
 prth (result());
 
-goal Prolog.thy "app(?x, c:d:Nil, a:b:c:d:Nil)";
+Goal "app(?x, c:d:Nil, a:b:c:d:Nil)";
 by (REPEAT (resolve_tac [appNil,appCons] 1));
 result();
 
 
-goal Prolog.thy "app(?x, ?y, a:b:c:d:Nil)";
+Goal "app(?x, ?y, a:b:c:d:Nil)";
 by (REPEAT (resolve_tac [appNil,appCons] 1));
 back();
 back();
@@ -32,16 +32,16 @@
 (*app([x1,...,xn], y, ?z) requires (n+1) inferences*)
 (*rev([x1,...,xn], ?y) requires (n+1)(n+2)/2 inferences*)
 
-goal Prolog.thy "rev(a:b:c:d:Nil, ?x)";
+Goal "rev(a:b:c:d:Nil, ?x)";
 val rules = [appNil,appCons,revNil,revCons];
 by (REPEAT (resolve_tac rules 1));
 result();
 
-goal Prolog.thy "rev(a:b:c:d:e:f:g:h:i:j:k:l:m:n:Nil, ?w)";
+Goal "rev(a:b:c:d:e:f:g:h:i:j:k:l:m:n:Nil, ?w)";
 by (REPEAT (resolve_tac rules 1));
 result();
 
-goal Prolog.thy "rev(?x, a:b:c:Nil)";
+Goal "rev(?x, a:b:c:Nil)";
 by (REPEAT (resolve_tac rules 1)); (*does not solve it directly!*)
 back();
 back();
@@ -53,19 +53,19 @@
 by prolog_tac;
 result();
 
-goal Prolog.thy "rev(a:?x:c:?y:Nil, d:?z:b:?u)";
+Goal "rev(a:?x:c:?y:Nil, d:?z:b:?u)";
 by prolog_tac;
 result();
 
 (*rev([a..p], ?w) requires 153 inferences *)
-goal Prolog.thy "rev(a:b:c:d:e:f:g:h:i:j:k:l:m:n:o:p:Nil, ?w)";
+Goal "rev(a:b:c:d:e:f:g:h:i:j:k:l:m:n:o:p:Nil, ?w)";
 by (DEPTH_SOLVE (resolve_tac ([refl,conjI]@rules) 1));
 (*Poly/ML: 4 secs >> 38 lips*)
 result();
 
 (*?x has 16, ?y has 32;  rev(?y,?w) requires 561 (rather large) inferences;
   total inferences = 2 + 1 + 17 + 561 = 581*)
-goal Prolog.thy
+Goal
     "a:b:c:d:e:f:g:h:i:j:k:l:m:n:o:p:Nil = ?x & app(?x,?x,?y) & rev(?y,?w)";
 by (DEPTH_SOLVE (resolve_tac ([refl,conjI]@rules) 1));
 (*Poly/ML: 29 secs >> 20 lips*)