Nuprl Lemma : member-es-before

the_es:EO. ∀e',e:E.  ((e ∈ before(e')) ⇐⇒ (e <loc e'))


Proof




Definitions occuring in Statement :  es-before: before(e) es-locl: (e <loc e') es-E: E event_ordering: EO l_member: (x ∈ l) all: x:A. B[x] iff: ⇐⇒ Q
Definitions unfolded in proof :  member: t ∈ T uall: [x:A]. B[x] so_lambda: λ2x.t[x] so_apply: x[s] all: x:A. B[x] es-before: before(e) implies:  Q bool: 𝔹 unit: Unit it: btrue: tt uiff: uiff(P;Q) and: P ∧ Q uimplies: supposing a ifthenelse: if then else fi  bfalse: ff prop: wellfounded: WellFnd{i}(A;x,y.R[x; y]) guard: {T} iff: ⇐⇒ Q not: ¬A false: False rev_implies:  Q or: P ∨ Q

Latex:
\mforall{}the$_{es}$:EO.  \mforall{}e',e:E.    ((e  \mmember{}  before(e'))  \mLeftarrow{}{}\mRightarrow{}  (e  <loc  e'))



Date html generated: 2016_05_16-AM-09_29_59
Last ObjectModification: 2015_12_28-PM-09_50_21

Theory : new!event-ordering


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