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src/HOLCF/Discrete1.ML
changeset 4098 71e05eb27fb6
parent 3323 194ae2e0c193
child 4721 c8a8482a8124 
--- a/src/HOLCF/Discrete1.ML	Mon Nov 03 12:36:48 1997 +0100
+++ b/src/HOLCF/Discrete1.ML	Mon Nov 03 14:06:27 1997 +0100
@@ -22,7 +22,7 @@
 
 goal thy
  "!!S::nat=>('a::term)discr. is_chain(S) ==> range(S) = {S 0}";
-by (fast_tac (!claset addEs [discr_chain0]) 1);
+by (fast_tac (claset() addEs [discr_chain0]) 1);
 qed "discr_chain_range0";
 Addsimps [discr_chain_range0];
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