Nuprl Lemma : first-event-property
11,40
postcript
pdf
es
:ES,
e
:E. first-event{i:l}(
es
;
e
)
loc
e
& (
first(first-event{i:l}(
es
;
e
)))
latex
Definitions
first-event{i:l}(
es
;
e
)
,
ES
,
x
:
A
.
B
(
x
)
,
E
,
P
&
Q
,
e
loc
e'
,
b
,
f
(
a
)
,
the-first-event
,
,
x
:
A
B
(
x
)
,
t
T
,
P
Q
,
left
+
right
,
P
Q
,
if
b
then
t
else
f
fi
,
t
.1
,
(
e
<
e'
)
,
s
=
t
,
Id
,
x
:
A
B
(
x
)
,
(
e
<loc
e'
)
,
x
:
A
.
B
(
x
)
Lemmas
es-causle-le
origin
es:ES, e:E. first-event{i:l}(es;e) 
loc e & (
first(first-event{i:l}(es;e))) es:ES, e:E. first-event{i:l}(es;e) loc e & (first(first-event{i:l}(es;e))) x:A. B(x)loc e' b
B(x)
T
Q
Q
B(x)
x:A. B(x)