Nuprl Lemma : es-local-pred_wf2

[Info:Type]. ∀[es:EO+(Info)]. ∀[e:E]. ∀[P:{e':E| (e' <loc e)}  ⟶ 𝔹].
  (last(P) e ∈ (∃e':{E| ((e' <loc e) ∧ (↑(P e')) ∧ (∀e'':E. ((e' <loc e'')  (e'' <loc e)  (¬↑(P e'')))))})
   ∨ (∃e':{E| ((e' <loc e) ∧ (↑(P e')))})))


Proof




Definitions occuring in Statement :  es-local-pred: last(P) event-ordering+: EO+(Info) es-locl: (e <loc e') es-E: E assert: b bool: 𝔹 uall: [x:A]. B[x] all: x:A. B[x] sq_exists: x:{A| B[x]} not: ¬A implies:  Q or: P ∨ Q and: P ∧ Q member: t ∈ T set: {x:A| B[x]}  apply: a function: x:A ⟶ B[x] universe: Type
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T all: x:A. B[x] subtype_rel: A ⊆B prop: strongwellfounded: SWellFounded(R[x; y]) exists: x:A. B[x] nat: implies:  Q false: False ge: i ≥  uimplies: supposing a satisfiable_int_formula: satisfiable_int_formula(fmla) not: ¬A top: Top and: P ∧ Q guard: {T} int_seg: {i..j-} lelt: i ≤ j < k le: A ≤ B less_than': less_than'(a;b) decidable: Dec(P) or: P ∨ Q less_than: a < b squash: T es-local-pred: last(P) bool: 𝔹 unit: Unit it: btrue: tt uiff: uiff(P;Q) ifthenelse: if then else fi  bfalse: ff sq_exists: x:{A| B[x]} so_lambda: λ2x.t[x] so_apply: x[s] sq_type: SQType(T) bnot: ¬bb assert: b cand: c∧ B iff: ⇐⇒ Q true: True rev_implies:  Q label: ...$L... t

Latex:
\mforall{}[Info:Type].  \mforall{}[es:EO+(Info)].  \mforall{}[e:E].  \mforall{}[P:\{e':E|  (e'  <loc  e)\}    {}\mrightarrow{}  \mBbbB{}].
    (last(P)  e  \mmember{}  (\mexists{}e':\{E|  ((e'  <loc  e)
                                                \mwedge{}  (\muparrow{}(P  e'))
                                                \mwedge{}  (\mforall{}e'':E.  ((e'  <loc  e'')  {}\mRightarrow{}  (e''  <loc  e)  {}\mRightarrow{}  (\mneg{}\muparrow{}(P  e'')))))\})
      \mvee{}  (\mneg{}(\mexists{}e':\{E|  ((e'  <loc  e)  \mwedge{}  (\muparrow{}(P  e')))\})))



Date html generated: 2016_05_16-PM-11_18_13
Last ObjectModification: 2016_01_17-PM-07_27_54

Theory : event-ordering


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