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fixed SOUNDNESS BUG concerning the map from terms like ?f x y to SVC variables

Mon, 20 Sep 1999 12:01:41 +0200
Fixed bug in add_primrec which caused non-informative error message.

Fixed bug in add_primrec which caused non-informative error message.

renamed Always_Int to Always_Int_I

new theorem mono_Follows_apply

new theorem Always_INT_distrib; therefore renamed Always_Int
to Always_Int_I

working Safety proof for the system at last

now uses Pattern.aeconv, not aconv, to test equality between the terms
abstracted over; otherwise it is incomplete. Other changes are cosmetic

new rule PLam_ensures

working snapshot

new theorem image_image_eq_UN