# HG changeset patch # User berghofe # Date 1038413225 -3600 # Node ID 9550a6f4ed4a00f7fd421c59b42b71144e19244b # Parent 12404b452034b17871fd4b0683ebf454903d77c9 Replaced some blasts by rules. diff -r 12404b452034 -r 9550a6f4ed4a src/HOL/Transitive_Closure.thy --- a/src/HOL/Transitive_Closure.thy Wed Nov 27 17:06:47 2002 +0100 +++ b/src/HOL/Transitive_Closure.thy Wed Nov 27 17:07:05 2002 +0100 @@ -199,8 +199,8 @@ show ?thesis apply (subgoal_tac "x = z | (EX y. (x,y) : r & (y,z) : r^*)") apply (rule_tac [2] major [THEN converse_rtrancl_induct]) - prefer 2 apply (blast!) - prefer 2 apply (blast!) + prefer 2 apply rules + prefer 2 apply rules apply (erule asm_rl exE disjE conjE prems)+ done qed