Nuprl Lemma : es-first_wf

∀[es:EO]. ∀[e:es-base-E(es)].  (first(e) ∈ 𝔹)


Proof




Definitions occuring in Statement :  es-first: first(e),  es-base-E: es-base-E(es),  event_ordering: EO,  bool: 𝔹,  uall: ∀[x:A]. B[x],  member: t ∈ T
Lemmas :  es-eq-E-wf-base,  es-pred-wf-base,  bor_wf,  bnot_wf,  es-dom_wf,  es-base-E_wf,  event_ordering_wf
\mforall{}[es:EO].  \mforall{}[e:es-base-E(es)].    (first(e)  \mmember{}  \mBbbB{})



Date html generated: 2015_07_17-AM-08_35_03
Last ObjectModification: 2015_01_27-PM-02_58_38

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