Nuprl Lemma : complete_nat_ind_with_y 13,42

P:({k}). (i:. (j:iP(j))  P(i))  (i:P(i)) 
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Upint 1, int 1
Definitionsx(s), P  Q, , , x:AB(x), t  T, Y, False, A, A  B, i  j , suptype(ST), S  T, {i..j}, P & Q, i  j < k, P  Q, Dec(P)
Lemmasle wf, int seg wf, nat wf, ge wf, nat properties, decidable int equal

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