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src/HOL/AxClasses/Tutorial/Semigroups.thy
changeset 10007 64bf7da1994a
parent 8920 af5e09b6c208 
--- a/src/HOL/AxClasses/Tutorial/Semigroups.thy	Sun Sep 17 22:15:08 2000 +0200
+++ b/src/HOL/AxClasses/Tutorial/Semigroups.thy	Sun Sep 17 22:19:02 2000 +0200
@@ -3,18 +3,18 @@
     Author:     Markus Wenzel, TU Muenchen
 *)
 
-theory Semigroups = Main:;
+theory Semigroups = Main:
 
 consts
-  times :: "'a => 'a => 'a"    (infixl "[*]" 70);
+  times :: "'a => 'a => 'a"    (infixl "[*]" 70)
 axclass
   semigroup < "term"
-  assoc: "(x [*] y) [*] z = x [*] (y [*] z)";
+  assoc: "(x [*] y) [*] z = x [*] (y [*] z)"
 
 consts
-  plus :: "'a => 'a => 'a"    (infixl "[+]" 70);
+  plus :: "'a => 'a => 'a"    (infixl "[+]" 70)
 axclass
   plus_semigroup < "term"
-  assoc: "(x [+] y) [+] z = x [+] (y [+] z)";
+  assoc: "(x [+] y) [+] z = x [+] (y [+] z)"
 
-end;
+end
isabelle