Nuprl Lemma : implies-normal-ds 11,40

ds:x:Id fp Type. xdom(ds). A=ds(x  A  Normal(ds
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DefinitionsP  Q, x:AB(x), Id, t  T, Type, xt(x), a:A fp B(a), x.A(x), Top, x:AB(x), f(x), IdDeq, x  dom(f), b, xdom(f). v=f(x  P(x;v), Normal(ds)
Lemmasassert wf, fpf-dom wf, id-deq wf, fpf-ap wf, fpf-trivial-subtype-top, fpf wf, Id wf

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