Nuprl Lemma : ma-valtype-subtype 11,40

k:Knd, da, da':a:Knd fp Type. da  da'  (Valtype(da';k) r Valtype(da;k)) 
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Definitionsx:A. B(x), P  Q, Valtype(da;k), t  T, x. t(x), {T}, x(s),
Lemmassubtype-fpf-cap, Knd wf, Kind-deq wf, fpf-sub wf, fpf wf

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