Nuprl Lemma : qeq_wf 11,40

r,s:b-union(; (:  int_nzero)). qeq(rs  
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Definitions(i = j), ff, tt, if b then t else f fi , qeq(rs), t  T, x:AB(x), , int_nzero, b-union(AB)
Lemmasint nzero wf, b-union wf, btrue wf, eq int wf

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