Nuprl Lemma : es-state-ap_wf
11,40
postcript
pdf
es
:ES,
i
:Id,
s
:state@
i
,
x
:Id.
s
.
x
vartype(
i
;
x
)
latex
Definitions
ES
,
t
T
,
Id
,
Top
,
x
:
A
.
B
(
x
)
,
es-T(
es
)
,
f
(
a
)
,
Type
,
discrete(
i
;
x
)
,
if
b
then
t
else
f
fi
,
x
:
A
B
(
x
)
,
vartype(
i
;
x
)
,
s
.
x
,
state@
i
Lemmas
ifthenelse
wf
,
es-isconst
wf
,
es-T
wf
,
top
wf
,
Id
wf
,
event
system
wf
origin
es:ES, i:Id, s:state@i, x:Id. s.x 
vartype(i;x) es:ES, i:Id, s:state@i, x:Id. s.x vartype(i;x) Tx:A. B(x)
B(x)