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doc-src/TutorialI/Rules/Primes.thy
changeset 35416 d8d7d1b785af
parent 33750 0a0d6d79d984
child 36745 403585a89772 
--- a/doc-src/TutorialI/Rules/Primes.thy	Wed Feb 24 11:55:52 2010 +0100
+++ b/doc-src/TutorialI/Rules/Primes.thy	Mon Mar 01 13:40:23 2010 +0100
@@ -99,8 +99,7 @@
 
 (**** The material below was omitted from the book ****)
 
-constdefs
-  is_gcd  :: "[nat,nat,nat] \<Rightarrow> bool"        (*gcd as a relation*)
+definition is_gcd :: "[nat,nat,nat] \<Rightarrow> bool" where        (*gcd as a relation*)
     "is_gcd p m n == p dvd m  \<and>  p dvd n  \<and>
                      (ALL d. d dvd m \<and> d dvd n \<longrightarrow> d dvd p)"
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