Nuprl Lemma : skip-first-class-is-empty-if-first
∀[Info,A:Type]. ∀[es:EO+(Info)]. ∀[e:E]. ∀[X:EClass(A)].  Skip(X) es e ~ {} supposing ↑first(e)
Proof
Definitions occuring in Statement : 
skip-first-class: Skip(X)
, 
eclass: EClass(A[eo; e])
, 
event-ordering+: EO+(Info)
, 
es-first: first(e)
, 
es-E: E
, 
assert: ↑b
, 
uimplies: b supposing a
, 
uall: ∀[x:A]. B[x]
, 
apply: f a
, 
universe: Type
, 
sqequal: s ~ t
, 
empty-bag: {}
Lemmas : 
bool_wf, 
eqtt_to_assert, 
eqff_to_assert, 
equal_wf, 
bool_cases_sqequal, 
subtype_base_sq, 
bool_subtype_base, 
assert_wf, 
es-first_wf2, 
event-ordering+_subtype, 
eclass_wf, 
es-E_wf, 
event-ordering+_wf
Latex:
\mforall{}[Info,A:Type].  \mforall{}[es:EO+(Info)].  \mforall{}[e:E].  \mforall{}[X:EClass(A)].    Skip(X)  es  e  \msim{}  \{\}  supposing  \muparrow{}first(e)
Date html generated:
2015_07_20-PM-04_05_08
Last ObjectModification:
2015_01_27-PM-09_50_34
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