Nuprl Lemma : es-le_wf
11,40
postcript
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the_es
:event_system{i:l},
e
,
e'
:es-E(
the_es
). es-le(
the_es
;
e
;
e'
)
prop{i:l}
latex
Definitions
x
:
A
.
B
(
x
)
,
t
T
,
prop{i:l}
,
es-le(
es
;
e
;
e'
)
,
P
Q
Lemmas
es-locl
wf
,
es-E
wf
,
event
system
wf
origin
the_es:event_system{i:l}, e,e':es-E(the_es). es-le(the_es; e; e') 
prop{i:l} the_es:event_system{i:l}, e,e':es-E(the_es). es-le(the_es; e; e') prop{i:l} x:A. B(x) T
Q