Nuprl Lemma : prior-val-induction3

∀[Info,T:Type].
  ∀es:EO+(Info). ∀X:EClass(T).
    ∀[P:E(X) ─→ T ─→ ℙ]
      ((∀e:E(X). (P[e;X(e)] supposing ¬↑e ∈b (X)' ∧ P[prior(X)(e);(X)'(e)] ⇒ P[e;X(e)] supposing ↑e ∈b (X)'))
      ⇒ (∀e:E(X). P[e;X(e)]))


Proof




Definitions occuring in Statement :  es-prior-val: (X)',  es-prior-interface: prior(X),  es-E-interface: E(X),  eclass-val: X(e),  in-eclass: e ∈b X,  eclass: EClass(A[eo; e]),  event-ordering+: EO+(Info),  assert: ↑b,  uimplies: b supposing a,  uall: ∀[x:A]. B[x],  prop: ℙ,  so_apply: x[s1;s2],  all: ∀x:A. B[x],  not: ¬A,  implies: P ⇒ Q,  and: P ∧ Q,  function: x:A ─→ B[x],  universe: Type
Lemmas :  prior-interface-induction,  eclass_wf,  es-E_wf,  event-ordering+_subtype,  event-ordering+_wf,  es-E-interface_wf,  es-interface-subtype_rel2,  top_wf,  eclass-val_wf,  assert_elim,  in-eclass_wf,  subtype_base_sq,  bool_wf,  bool_subtype_base,  assert_wf,  es-prior-interface_wf1,  subtype_top,  is-prior-val-iff-prior-interface,  es-prior-val_wf,  not_wf,  assert_witness,  eclass-val_wf2,  es-prior-interface_wf,  es-E-interface-property,  eqtt_to_assert,  bag_only_single_lemma,  eqff_to_assert,  bfalse_wf,  and_wf,  equal_wf,  bnot_wf,  btrue_neq_bfalse,  bool_cases_sqequal,  all_wf

Latex:
\mforall{}[Info,T:Type].
    \mforall{}es:EO+(Info).  \mforall{}X:EClass(T).
        \mforall{}[P:E(X)  {}\mrightarrow{}  T  {}\mrightarrow{}  \mBbbP{}]
            ((\mforall{}e:E(X)
                    (P[e;X(e)]  supposing  \mneg{}\muparrow{}e  \mmember{}\msubb{}  (X)'
                    \mwedge{}  P[prior(X)(e);(X)'(e)]  {}\mRightarrow{}  P[e;X(e)]  supposing  \muparrow{}e  \mmember{}\msubb{}  (X)'))
            {}\mRightarrow{}  (\mforall{}e:E(X).  P[e;X(e)]))



Date html generated: 2015_07_21-PM-03_24_08
Last ObjectModification: 2015_01_27-PM-06_48_14

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