Nuprl Lemma : p-open-member_wf 11,40

p:FinProbSpace, C:p-open(p), s:(Outcome). s  C   
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DefinitionsFinProbSpace, t  T, #$n, x:AB(x), {i..j}, Outcome, {x:AB(x)} , , x:AB(x), Type, A  B, S  T, P & Q, i  j < k, suptype(ST), <ab>, f(a), x:A  B(x), , s = t, , x:AB(x), s  C, p-open(p)
Lemmasle wf, nat wf, p-outcome wf, int seg wf, finite-prob-space wf

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