Nuprl Lemma : existse-ge_wf
11,40
postcript
pdf
es
:ES,
e
:E,
P
:({
e'
:E| loc(
e'
) = loc(
e
)
Id}
).
e'
e
.
P
(
e'
)
latex
Definitions
P
Q
,
A
c
B
,
e
loc
e'
,
P
&
Q
,
x
:
A
.
B
(
x
)
,
x
(
s
)
,
e'
e
.
P
(
e'
)
,
t
T
,
,
x
:
A
.
B
(
x
)
,
P
Q
Lemmas
event
system
wf
,
es-E
wf
,
es-loc
wf
,
Id
wf
,
es-le-loc
,
es-locl
wf
origin
es:ES, e:E, P:({e':E| loc(e') = loc(e) 
Id} 
). 
e'
e.P(e') es:ES, e:E, P:({e':E| loc(e') = loc(e) Id} ). e'e.P(e') 
Q
B
loc e' x:A. B(x)e'e.P(e') Tx:A. B(x)
Q