Nuprl Lemma : es-prior-interface-cases-sq

[Info:Type]
  ∀X:EClass(Top). ∀es:EO+(Info). ∀e:E.
    (¬↑first(e))
    ∧ (((↑pred(e) ∈b X) ∧ (prior(X)(e) pred(e)))
      ∨ ((¬↑pred(e) ∈b X) ∧ (↑pred(e) ∈b prior(X)) ∧ (prior(X)(e) prior(X)(pred(e))))) 
    supposing ↑e ∈b prior(X)


Proof




Definitions occuring in Statement :  es-prior-interface: prior(X) eclass-val: X(e) in-eclass: e ∈b X eclass: EClass(A[eo; e]) event-ordering+: EO+(Info) es-first: first(e) es-pred: pred(e) es-E: E assert: b uimplies: supposing a uall: [x:A]. B[x] top: Top all: x:A. B[x] not: ¬A or: P ∨ Q and: P ∧ Q universe: Type sqequal: t
Lemmas :  assert_witness in-eclass_wf es-prior-interface_wf0 es-interface-subtype_rel2 es-E_wf event-ordering+_subtype event-ordering+_wf top_wf subtype_top is-prior-interface es-locl-first assert_elim btrue_neq_bfalse assert_wf es-first_wf2 decidable__assert es-pred_wf eclass_wf not_wf bag_only_single_lemma assert-bnot bool_subtype_base subtype_base_sq bool_cases_sqequal equal_wf eqff_to_assert eqtt_to_assert bool_wf empty-bag_wf single-bag_wf or_wf es-local-pred_wf all_wf es-locl_wf sq_exists_wf iff_weakening_uiff iff_transitivity bag_size_single_lemma assert_of_eq_int bag-size_wf eq_int_wf assert_of_bnot bnot_wf equal-wf-T-base uiff_transitivity bag_size_empty_lemma

Latex:
\mforall{}[Info:Type]
    \mforall{}X:EClass(Top).  \mforall{}es:EO+(Info).  \mforall{}e:E.
        (\mneg{}\muparrow{}first(e))
        \mwedge{}  (((\muparrow{}pred(e)  \mmember{}\msubb{}  X)  \mwedge{}  (prior(X)(e)  \msim{}  pred(e)))
            \mvee{}  ((\mneg{}\muparrow{}pred(e)  \mmember{}\msubb{}  X)  \mwedge{}  (\muparrow{}pred(e)  \mmember{}\msubb{}  prior(X))  \mwedge{}  (prior(X)(e)  \msim{}  prior(X)(pred(e))))) 
        supposing  \muparrow{}e  \mmember{}\msubb{}  prior(X)



Date html generated: 2015_07_21-PM-02_44_03
Last ObjectModification: 2015_07_16-AM-09_42_22

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