Nuprl Lemma : R-da-Rda 11,40

i:Id, R:es_realizer{i:l}.
((Rplus?(R)))
 ((Rnone?(R)))
 (R-da(R; i) = if eq_id(R-loc(R); i) then Rda(R) else fpf-empty fi   fpf(Knd; x.Type)) 
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Definitionsprop{i:l}, True, tt, ff, x. t(x), t  T, Rda(R), R-loc(R), if b then t else f fi , R-da(R; i), Rnone?(x1), Rplus?(x1), b, P  Q, x:A. B(x), P  Q, P  Q, False, x(s), , Unit, A, es_realizer{i:l}, Rrframe(loc; x; L), Rbframe(loc; k; L), Raframe(loc; k; L), Rpre(loc; ds; a; p; P), Rsends(ds; knd; T; l; dt; g), Reffect(loc; ds; knd; T; x; f), Rsframe(lnk; tag; L), Rframe(loc; T; x; L), Rinit(loc; T; x; v), Rplus(left; right), Rnone,
Lemmases realizer wf, locl wf, p-outcome wf, Kind-deq wf, lnk-decl wf, fpf-join wf, fpf-single wf3, lsrc wf, not functionality wrt iff, assert of bnot, eqff to assert, bnot wf, fpf-empty wf, assert-eq-id, eqtt to assert, assert wf, iff transitivity, eq id wf, false wf, true wf, not 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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