left,right:es_realizer{i:l}. Rplus(left; right)  es_realizer{i:l} 

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Definitions	x. t(x), Rplus(left; right), t  T, es_realizer{i:l}, x:A. B(x), x(s)
Lemmas	unit wf, bool wf, finite-prob-space wf, decl-type wf, decl-state wf, fpf wf, IdLnk wf, Knd wf, rationals wf, Id wf