Nuprl Lemma : ecase1_wf 11,40

E,T,X1,X2:Type, info:(E((:Id  X1) + (:(:IdLnk  E X2))), e:Ef:(IdT), g:(IdLnkET).
ecase1(e;info;i.f(i);l,e'.g(l,e'))  T 
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Definitionsx:AB(x), t  T, ecase1(e;info;i.f(i);l,e'.g(l;e')), x(s), x(s1,s2), t.1, t.2, P  Q
LemmasIdLnk wf, Id wf

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