# HG changeset patch # User berghofe # Date 832857443 -7200 # Node ID fb07e359b59f90d68f7c5fa9d1655126fa2704de # Parent 6e481897a811188985bcd3a939097513dd25987c expanded TABs diff -r 6e481897a811 -r fb07e359b59f src/HOL/equalities.ML --- a/src/HOL/equalities.ML Thu May 23 15:16:12 1996 +0200 +++ b/src/HOL/equalities.ML Thu May 23 15:17:23 1996 +0200 @@ -87,7 +87,7 @@ (fn _ => [Fast_tac 1]); goalw Set.thy [image_def] -"(%x. if P x then f x else g x) `` S \ +"(%x. if P x then f x else g x) `` S \ \ = (f `` ({x.x:S & P x})) Un (g `` ({x.x:S & ~(P x)}))"; by(split_tac [expand_if] 1); by(Fast_tac 1); @@ -102,8 +102,8 @@ qed_goalw "image_range" Set.thy [image_def, range_def] "f``range g = range (%x. f (g x))" (fn _ => [ - rtac Collect_cong 1, - Fast_tac 1]); + rtac Collect_cong 1, + Fast_tac 1]); section "Int";