Nuprl Lemma : sorted_wf 11,40

T:Type. subtype_rel(T (L:(T List). sorted(L prop{i:l}) 
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Definitionst  T, x:AB(x), ||as||, P  Q, lelt(ijk), P  Q, False, A, A  B, int_seg(ij), subtype(ST), l[i], prop{i:l}, sorted(L)
Lemmasint seg wf, le wf, select wf, length wf1

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