Nuprl Lemma : test-es-first-reasoning

es:EO. ∀e1,e2:E.  (e1 ≤loc e2   (¬↑first(e1))  (¬↑first(e2)))


Proof




Definitions occuring in Statement :  es-le: e ≤loc e'  es-first: first(e) es-E: E event_ordering: EO assert: b all: x:A. B[x] not: ¬A implies:  Q
Definitions unfolded in proof :  all: x:A. B[x] implies:  Q not: ¬A false: False uall: [x:A]. B[x] member: t ∈ T uimplies: supposing a ifthenelse: if then else fi  btrue: tt and: P ∧ Q prop:

Latex:
\mforall{}es:EO.  \mforall{}e1,e2:E.    (e1  \mleq{}loc  e2    {}\mRightarrow{}  (\mneg{}\muparrow{}first(e1))  {}\mRightarrow{}  (\mneg{}\muparrow{}first(e2)))



Date html generated: 2016_05_16-AM-10_36_47
Last ObjectModification: 2015_12_28-PM-09_13_49

Theory : new!event-ordering


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