--- a/src/HOL/Hoare_Parallel/Mul_Gar_Coll.thy Fri May 16 20:44:51 2025 +0200
+++ b/src/HOL/Hoare_Parallel/Mul_Gar_Coll.thy Sun May 18 14:33:01 2025 +0000
@@ -1188,7 +1188,7 @@
apply(simp_all add:Graph6 Graph7 Graph8 Append_to_free0 Append_to_free1 Graph12)
\<comment> \<open>35 subgoals left\<close>
apply(tactic \<open>TRYALL(EVERY'[resolve_tac \<^context> [disjI1],
- resolve_tac \<^context> [subset_trans],
+ resolve_tac \<^context> @{thms subset_trans},
eresolve_tac \<^context> @{thms Graph3},
force_tac \<^context>,
assume_tac \<^context>])\<close>)