Nuprl Lemma : pe-es_wf
0,22
postcript
pdf
p
:(ES{i}
Prop{i'}),
e
:possible-event{i:l}(
p
). pe-es(
e
)
ES{i}
latex
Definitions
Type
,
Prop
,
t
T
,
ES
,
x
:
A
B
(
x
)
,
f
(
a
)
,
x
:
A
.
B
(
x
)
,
E
,
x
:
A
B
(
x
)
,
x
.
A
(
x
)
,
x
.
t
(
x
)
,
1of(
t
)
,
pe-es(
e
)
,
PossibleEvent(
poss
)
Lemmas
pi1
wf
,
es-E
wf
,
event
system
wf
origin
p:(ES{i}
Prop{i'}), e:possible-event{i:l}(p). pe-es(e) 
ES{i} p:(ES{i}Prop{i'}), e:possible-event{i:l}(p). pe-es(e) ES{i} TB(x)x:A. B(x)
B(x)
x.A(x)
x. t(x)