Nuprl Lemma : member_upto2 0,22

ni:i<n  (i  upto(n)) 
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Definitions(x  l), x:AB(x), Prop, upto(n), ||as||, A & B, , {i..j}, A, False, P  Q, l[i], i  j < k, P & Q, AB, x:AB(x), t  T
Lemmasle wf, select upto, length upto, select wf, upto wf, int seg wf, length wf1, nat wf

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