Nuprl Lemma : deq_property 0,22

T:Type, d:EqDecider(T), xy:Tx = y  eqof(d)(x,y
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DefinitionsEqDecider(T), eqof(d), 1of(t), xt(x), , Prop, b, x:AB(x), P  Q, P & Q, P  Q, P  Q, t  T
Lemmasassert wf, iff wf, bool wf, pi1 wf

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