Nuprl Lemma : change-lemma2
11,40
postcript
pdf
es
:ES,
x
,
i
:Id,
T
:Type.
(
x
,
y
:
T
. Dec(
x
=
y
T
))
@
i
(
x
:
T
)
(
e'
,
e
:E.
(
e
<loc
e'
)
(loc(
e'
) =
i
)
(
((
x
after
e
) = (
x
when
e'
)
T
))
(
ev
:E
(
((
e
<loc
ev
) & (
ev
<loc
e'
)
(
& (
((
x
after
ev
) = (
x
when
ev
)
T
))
(
& (
x
after
ev
) = (
x
when
e'
)
T
)))
latex
Definitions
True
,
T
,
A
,
A
c
B
,
P
&
Q
,
x
:
A
.
B
(
x
)
,
P
Q
,
,
(
e
<loc
e'
)
,
t
T
,
x
:
A
.
B
(
x
)
,
False
,
P
Q
,
Dec(
P
)
,
P
Q
,
@
i
(
x
:
T
)
Lemmas
es-E
wf
,
true
wf
,
squash
wf
,
es-le
weakening
,
es-locl
transitivity2
,
es-after-pred2
,
decidable
es-locl
,
es-pred-locl
,
es-pred
wf
,
event
system
wf
,
decidable
wf
,
es-dtype
wf
,
es-locl
wf
,
es-when
wf
,
es-vartype
wf
,
es-locl-iff
,
es-loc-pred
,
es-after
wf
,
not
wf
,
es-causl
wf
,
es-loc
wf
,
Id
wf
origin