Nuprl Lemma : es-initially_wf 11,40

es:event_system{i:l}, x,i:Id. es-initially(es; i; x)  es-vartype(es; i; x) 
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Definitionst  T, x:A. B(x), es_init(es), f(a), es_state(es; i), Id, es_vartype(es; i; x), x:AB(x), event_system{i:l}, rationals, es-T(es), , #$n, es-initially(es; i; x), es-vartype(es; i; x)
Lemmasint inc rationals, Id wf, event system wf, es init wf

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