Nuprl Lemma : comb_for_pi1_wf 12,41

(A,B,p,z. p.1)  A:TypeB:(AType)(a:A  B(a))(True)A 
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ProofTree


Definitionsx(s), t  T, , x:A. B(x), T
Lemmastrue wf, squash wf, pi1 wf

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