Nuprl Lemma : es-interval-is-nil
0,22
postcript
pdf
es
:ES,
e
,
e'
:E. loc(
e
) = loc(
e'
)
Id
(
e'
<loc
e
)
([
e
,
e'
] ~ nil)
latex
Definitions
ES
,
t
T
,
x
:
A
.
B
(
x
)
,
E
,
loc(
e
)
,
Id
,
Prop
,
(
e
<loc
e'
)
,
P
Q
,
[
e
,
e'
]
,
P
Q
,
P
&
Q
,
P
Q
,
False
Lemmas
es-interval
wf
,
es-interval-nil
,
es-locl
wf
,
Id
wf
,
es-loc
wf
,
es-E
wf
,
event
system
wf
origin
es:ES, e, e':E. loc(e) = loc(e') 
Id 
(e' <loc e) ([e, e'] ~ nil) es:ES, e, e':E. loc(e) = loc(e') Id (e' <loc e) ([e, e'] ~ nil) Tx:A. B(x) Q
Q Q