changeset 1108 | 22b256c8c9fb |
parent 753 | ec86863e87c8 |
child 1401 | 0c439768f45c |
--- a/src/ZF/Sum.thy Thu May 04 02:01:24 1995 +0200 +++ b/src/ZF/Sum.thy Thu May 04 02:01:49 1995 +0200 @@ -18,7 +18,7 @@ sum_def "A+B == {0}*A Un {1}*B" Inl_def "Inl(a) == <0,a>" Inr_def "Inr(b) == <1,b>" - case_def "case(c,d) == split(%y z. cond(y, d(z), c(z)))" + case_def "case(c,d) == (%<y,z>. cond(y, d(z), c(z)))" (*operator for selecting out the various summands*) Part_def "Part(A,h) == {x: A. EX z. x = h(z)}"