Nuprl Lemma : Rplus-implies 11,40

A:es_realizer{i:l}. (Rplus?(A))  sqequal(A; Rplus(Rplus-left(A); Rplus-right(A))) 
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Definitionsif b then t else f fi , tt, ff, xt(x), t  T, Rplus-right(x1), Rplus-left(x1), Rplus?(x1), b, P  Q, x:AB(x), False, x(s), Unit, es_realizer{i:l}, Rrframe(locxL), Rbframe(lockL), Raframe(lockL), Rpre(locdsapP), Rsends(dskndTldtg), Reffect(locdskndTxf), Rsframe(lnktagL), Rframe(locTxL), Rinit(locTxv), prop{i:l}, Rnone, , Rplus(leftright)
Lemmases realizer wf, true wf, false wf, bool wf, finite-prob-space wf, decl-type wf, decl-state wf, fpf wf, IdLnk wf, Knd wf, rationals wf, Id wf, unit wf

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