Nuprl Lemma : es-knows-not

[poss:EO ⟶ ℙ']. ∀[R:PossibleEvent(poss) ⟶ PossibleEvent(poss) ⟶ ℙ'].
  (EquivRel(PossibleEvent(poss))(R _1 _2)
   (∀[P:PossibleEvent(poss) ⟶ ℙ']. ∀e:PossibleEvent(poss). K(λe.(¬K(P)@e))@e supposing ¬K(P)@e))


Proof




Definitions occuring in Statement :  es-knows: K(P)@e possible-event: PossibleEvent(poss) event_ordering: EO equiv_rel: EquivRel(T;x,y.E[x; y]) uimplies: supposing a uall: [x:A]. B[x] prop: all: x:A. B[x] not: ¬A implies:  Q apply: a lambda: λx.A[x] function: x:A ⟶ B[x]
Definitions unfolded in proof :  es-knows: K(P)@e uall: [x:A]. B[x] member: t ∈ T implies:  Q all: x:A. B[x] uimplies: supposing a not: ¬A false: False equiv_rel: EquivRel(T;x,y.E[x; y]) and: P ∧ Q prop: so_lambda: λ2x.t[x] so_apply: x[s] subtype_rel: A ⊆B so_lambda: λ2y.t[x; y] so_apply: x[s1;s2] guard: {T} sym: Sym(T;x,y.E[x; y]) trans: Trans(T;x,y.E[x; y])

Latex:
\mforall{}[poss:EO  {}\mrightarrow{}  \mBbbP{}'].  \mforall{}[R:PossibleEvent(poss)  {}\mrightarrow{}  PossibleEvent(poss)  {}\mrightarrow{}  \mBbbP{}'].
    (EquivRel(PossibleEvent(poss))(R  $_{1}$  $_{2}$)
    {}\mRightarrow{}  (\mforall{}[P:PossibleEvent(poss)  {}\mrightarrow{}  \mBbbP{}'].  \mforall{}e:PossibleEvent(poss).  K(\mlambda{}e.(\mneg{}K(P)@e))@e  supposing  \mneg{}K(P)@e))



Date html generated: 2016_05_16-AM-09_52_49
Last ObjectModification: 2015_12_28-PM-09_34_45

Theory : new!event-ordering


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