changeset 128 | 89669c58e506 |
parent 0 | 7949f97df77a |
child 171 | 16c4ea954511 |
--- a/Lfp.ML Thu Aug 25 10:47:33 1994 +0200 +++ b/Lfp.ML Thu Aug 25 11:01:45 1994 +0200 @@ -60,7 +60,7 @@ val def_lfp_Tarski = result(); val rew::prems = goal Lfp.thy - "[| A == lfp(f); a:A; mono(f); \ + "[| A == lfp(f); mono(f); a:A; \ \ !!x. [| x: f(A Int {x.P(x)}) |] ==> P(x) \ \ |] ==> P(a)"; by (EVERY1 [rtac induct, (*backtracking to force correct induction*)