Nuprl Lemma : fpf-single-dom 11,40

A:Type, eq:EqDecider(A), x,y:Av:top. (fpf-dom(eqx; fpf-single(yv)))  (x = y
latex


Definitionsx:AB(x), t  T, P  Q, b, fpf-dom(eqxf), fpf-single(xv), deq-member(eqxL), t.1, reduce(fkas), ff, Y, P  Q, P  Q, prop{i:l}, P  Q, if b then t else f fi , P  Q, False
Lemmastop wf, deq wf, iff functionality wrt iff, assert wf, bor wf, eqof wf, bfalse wf, false wf, assert of bor, or functionality wrt iff, deq property

origin