Nuprl Lemma : es-open-interval-nil

[es:EO]. ∀[e,e':E].  (e, e') [] supposing (↑first(e')) ∨ ((¬↑first(e')) ∧ pred(e') ≤loc )


Proof




Definitions occuring in Statement :  es-open-interval: (e, e') es-le: e ≤loc e'  es-first: first(e) es-pred: pred(e) es-E: E event_ordering: EO nil: [] assert: b uimplies: supposing a uall: [x:A]. B[x] not: ¬A or: P ∨ Q and: P ∧ Q sqequal: t
Lemmas :  filter_is_nil es-bless_wf es-before_wf l_all_iff l_member_wf not_wf assert_wf assert-es-bless or_wf es-first_wf2 es-le_wf es-pred_wf es-E_wf event_ordering_wf member-es-before es-locl-first assert_elim btrue_neq_bfalse es-locl-iff es-locl_transitivity2 es-le_weakening_eq es-locl_irreflexivity es-le_weakening
\mforall{}[es:EO].  \mforall{}[e,e':E].    (e,  e')  \msim{}  []  supposing  (\muparrow{}first(e'))  \mvee{}  ((\mneg{}\muparrow{}first(e'))  \mwedge{}  pred(e')  \mleq{}loc  e  )



Date html generated: 2015_07_17-AM-08_41_40
Last ObjectModification: 2015_01_27-PM-02_39_07

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