Nuprl Lemma : comb_for_pi2_wf 9,38

(A,B,p,zp.2)  A:TypeB:(AType)p:(a:A  B(a))(True)B(p.1) 
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ProofTree


Definitionsx(s), t  T, , x:AB(x), T
Lemmastrue wf, squash wf, pi2 wf

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