Nuprl Lemma : normal-cap-void 11,40

da:fpf(Knd; k.Type), k:Knd.
normal-da{i:l}
normal-da(da)
 (fpf-dom(Kind-deq; kda))
 normal-type{i:l}
 normal-type(fpf-cap(da; Kind-deq; k; void)) 
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DefinitionsFalse, P  Q, A, t  T, x:AB(x), b, b, , s = t, prop{i:l}, Knd, Type, x.A(x), xt(x), top, fpf(Aa.B(a)), x:AB(x), Kind-deq, fpf-dom(eqxf), x:A  B(x), P  Q, P  Q, Unit, left + right, fpf-ap(feqx), normal-type{i:l}(T), void, if b then t else f fi , fpf-all(Aeqfx,v.P(x;v)), fpf-cap(feqxz), normal-da{i:l}(da)
Lemmasnormal-type wf, fpf-ap wf, fpf wf, eqtt to assert, iff transitivity, eqff to assert, assert of bnot, fpf-dom wf, Kind-deq wf, fpf-trivial-subtype-top, Knd wf, bool wf, bnot wf, not wf, assert wf

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