Nuprl Lemma : unchanged-for-change-to
11,40
postcript
pdf
T
:Type,
eq
:EqDecider(
T
),
es
:event_system{i:l},
x
:Id,
e
:{
e
:es-E(
es
)| es-dtype(
es
; loc(
e
);
x
;
T
)} ,
t
:rationals,
e'
:es-E(
es
),
v
:
T
.
(
x
unchanged-for
t
@
e
)
@
e'
(
x
v
)
es-locl(
es
;
e'
;
e
)
qle((es-time(
es
;
e'
) +
t
); es-time(
es
;
e
))
latex
Definitions
P
Q
,
P
Q
,
True
,
T
,
es-dtype(
es
;
i
;
x
;
T
)
,
A
,
prop{i:l}
,
A
c
B
,
x
:
A
.
B
(
x
)
,
P
Q
,
e
<
e'
.
P
(
e
)
,
es-locl(
es
;
e
;
e'
)
,
t
T
,
P
Q
,
x
:
A
.
B
(
x
)
,
guard(
T
)
,
SqStable(
P
)
,
(
x
unchanged-for
t
@
e
)
,
False
,
@
e
(
x
v
)
,
subtype(
S
;
T
)
,
!hyp_hide(
x
) {FDLNOr12445}
Lemmas
mon
ident
q
,
qinverse
q
,
qadd
comm
q
,
qadd
ac
1
q
,
true
wf
,
squash
wf
,
qadd
preserves
qle
,
iff
transitivity
,
int
inc
rationals
,
qmul
wf
,
qle
wf
,
es-time
wf
,
qadd
wf
,
qle
transitivity
qorder
,
es-causl
weakening
,
es-causle
weakening
locl
,
sq
stable
subtype
rel
,
decidable
assert
,
es-isconst
wf
,
assert
wf
,
sq
stable
from
decidable
,
es-le-last-change
,
last-change
wf
,
es-causle-time
,
es-when
wf
,
es-vartype
wf
,
es-after
wf
,
not
wf
,
es-causl
wf
,
assert-changed
,
deq
wf
,
event
system
wf
,
Id
wf
,
es-loc
wf
,
es-dtype
wf
,
rationals
wf
,
es-E
wf
,
unchanged-for
wf
,
es-change-to
wf
,
es-locl
wf
origin