Nuprl Lemma : non-void-decl-join 11,40

T:Type, eq:EqDecider(T), d1d2:a:T fp Type.
non-void(d1 non-void(d2 non-void(d1  d2
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Definitionst  T, P  Q, x:AB(x), x,yt(x;y), EqDecider(T), xt(x), a:A fp B(a), Top, x  dom(f), b, , xdom(f). v=f(x  P(x;v), f  g, non-void(d)
Lemmasfpf-all wf, assert wf, fpf-dom wf, fpf-trivial-subtype-top, fpf wf, deq wf, fpf-all-join-decl

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