(9steps total) PrintForm Definitions Lemmas ElisTarskiPf A Sections NuprlLIB Doc

At: s1 1 2 1 1 1 1
1. t: Term
2. s(t) = SUBX((t)[f(t)/X]; SUBX(f(t); UP(f(t))))
(t)[f(t)/X] = t
By: BLemmaWithUnfolds [`term_closed`] Thm* t:Term. closed(t)
Generated subgoals:

None

About:
equalall

(9steps total) PrintForm Definitions Lemmas ElisTarskiPf A Sections NuprlLIB Doc