changeset 22710 | f44439cdce77 |
parent 16417 | 9bc16273c2d4 |
child 24893 | b8ef7afe3a6b |
--- a/src/ZF/OrderArith.thy Sun Apr 15 23:25:50 2007 +0200 +++ b/src/ZF/OrderArith.thy Sun Apr 15 23:25:52 2007 +0200 @@ -369,7 +369,7 @@ done text{*But note that the combination of @{text wf_imp_wf_on} and - @{text wf_rvimage} gives @{term "wf(r) ==> wf[C](rvimage(A,f,r))"}*} + @{text wf_rvimage} gives @{prop "wf(r) ==> wf[C](rvimage(A,f,r))"}*} lemma wf_on_rvimage: "[| f: A->B; wf[B](r) |] ==> wf[A](rvimage(A,f,r))" apply (rule wf_onI2) apply (subgoal_tac "ALL z:A. f`z=f`y --> z: Ba")