src/FOLP/ex/prop.ML
 changeset 1459 d12da312eff4 parent 0 a5a9c433f639 child 1464 a608f83e3421
```--- a/src/FOLP/ex/prop.ML	Mon Jan 29 13:56:41 1996 +0100
+++ b/src/FOLP/ex/prop.ML	Mon Jan 29 13:58:15 1996 +0100
@@ -1,6 +1,6 @@
-(*  Title: 	FOL/ex/prop
+(*  Title:      FOL/ex/prop
ID:         \$Id\$
-    Author: 	Lawrence C Paulson, Cambridge University Computer Laboratory
+    Author:     Lawrence C Paulson, Cambridge University Computer Laboratory

First-Order Logic: propositional examples (intuitionistic and classical)
@@ -107,13 +107,13 @@

(* stab-to-peirce *)
goal thy "?p : (((P --> R) --> R) --> P) --> (((Q --> R) --> R) --> Q) \
-\	      --> ((P --> Q) --> P) --> P";
+\             --> ((P --> Q) --> P) --> P";
by tac;
result();

(* peirce-imp1 *)
goal thy "?p : (((Q --> R) --> Q) --> Q) \
-\	       --> (((P --> Q) --> R) --> P --> Q) --> P --> Q";
+\              --> (((P --> Q) --> R) --> P --> Q) --> P --> Q";
by tac;
result();

@@ -134,10 +134,10 @@

(* tatsuta *)
goal thy "?p : (((P7 --> P1) --> P10) --> P4 --> P5) \
-\	  --> (((P8 --> P2) --> P9) --> P3 --> P10) \
-\	  --> (P1 --> P8) --> P6 --> P7 \
-\	  --> (((P3 --> P2) --> P9) --> P4) \
-\	  --> (P1 --> P3) --> (((P6 --> P1) --> P2) --> P9) --> P5";
+\         --> (((P8 --> P2) --> P9) --> P3 --> P10) \
+\         --> (P1 --> P8) --> P6 --> P7 \
+\         --> (((P3 --> P2) --> P9) --> P4) \
+\         --> (P1 --> P3) --> (((P6 --> P1) --> P2) --> P9) --> P5";
by tac;
result();
```