Nuprl Lemma : es-knows-knows

∀[poss:EO ─→ ℙ']. ∀[R:PossibleEvent(poss) ─→ PossibleEvent(poss) ─→ ℙ'].
  (Trans(PossibleEvent(poss);a,b.R a b)
  ⇒ (∀[P:PossibleEvent(poss) ─→ ℙ']. ∀e:PossibleEvent(poss). (K(P)@e ⇒ K(λe.K(P)@e)@e)))


Proof




Definitions occuring in Statement :  es-knows: K(P)@e,  possible-event: PossibleEvent(poss),  event_ordering: EO,  trans: Trans(T;x,y.E[x; y]),  uall: ∀[x:A]. B[x],  prop: ℙ,  all: ∀x:A. B[x],  implies: P ⇒ Q,  apply: f a,  lambda: λx.A[x],  function: x:A ─→ B[x]
Lemmas :  possible-event_wf,  all_wf,  trans_wf,  event_ordering_wf
\mforall{}[poss:EO  {}\mrightarrow{}  \mBbbP{}'].  \mforall{}[R:PossibleEvent(poss)  {}\mrightarrow{}  PossibleEvent(poss)  {}\mrightarrow{}  \mBbbP{}'].
    (Trans(PossibleEvent(poss);a,b.R  a  b)
    {}\mRightarrow{}  (\mforall{}[P:PossibleEvent(poss)  {}\mrightarrow{}  \mBbbP{}'].  \mforall{}e:PossibleEvent(poss).  (K(P)@e  {}\mRightarrow{}  K(\mlambda{}e.K(P)@e)@e)))



Date html generated: 2015_07_17-AM-08_52_05
Last ObjectModification: 2015_01_27-PM-01_17_38

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