Nuprl Lemma : es-before-is-nil-if-first
∀[es:EO]. ∀[e:E].  before(e) ~ [] supposing ↑first(e)
Proof
Definitions occuring in Statement : 
es-before: before(e)
, 
es-first: first(e)
, 
es-E: E
, 
event_ordering: EO
, 
nil: []
, 
assert: ↑b
, 
uimplies: b supposing a
, 
uall: ∀[x:A]. B[x]
, 
sqequal: s ~ t
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, 
es-E_wf, 
event_ordering_wf
\mforall{}[es:EO].  \mforall{}[e:E].    before(e)  \msim{}  []  supposing  \muparrow{}first(e)
Date html generated:
2015_07_17-AM-08_44_30
Last ObjectModification:
2015_01_27-PM-02_28_33
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