Changed to use split instead of fsplit. The weakening of fsplitE appears not
to affect existing proofs.
--- a/src/ZF/add_ind_def.ML Thu May 04 02:01:49 1995 +0200
+++ b/src/ZF/add_ind_def.ML Thu May 04 02:02:18 1995 +0200
@@ -45,7 +45,7 @@
val split_eq : thm (*equality rule for split*)
val fsplitI : thm (*intro rule for fsplit*)
val fsplitD : thm (*destruct rule for fsplit*)
- val fsplitE : thm (*elim rule for fsplit*)
+ val fsplitE : thm (*elim rule; apparently never used*)
end;
signature SU = (** Description of a disjoint sum **)