# HG changeset patch # User paulson # Date 950177322 -3600 # Node ID 07284f7ad26211d419c16d636c6f61eac3d91491 # Parent fc5db20d7f6f235da31babc46b83f30358d07ab5 new thm and simprule inv_id diff -r fc5db20d7f6f -r 07284f7ad262 src/HOL/Fun.ML --- a/src/HOL/Fun.ML Thu Feb 10 11:03:54 2000 +0100 +++ b/src/HOL/Fun.ML Thu Feb 10 11:08:42 2000 +0100 @@ -38,6 +38,11 @@ qed "id_apply"; Addsimps [id_apply]; +Goal "inv id = id"; +by (simp_tac (simpset() addsimps [inv_def,id_def]) 1); +qed "inv_id"; +Addsimps [inv_id]; + section "o";