Nuprl Lemma : implies-normal-ds 0,22

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

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