Nuprl Lemma : cless_wf 11,40

E,X1,X2:Type, info:(E((:Id  X1) + (:(:IdLnk  E X2))), pred?:(E(?E)), e,e':E.
e < e'  prop{i:l} 
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Definitionse < e', rel_plus(TR), pred!(e;e'), x:AB(x), Unit, Id, IdLnk, t  T
LemmasIdLnk wf, Id wf, unit wf, pred! wf, rel plus wf

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