Nuprl Lemma : w-when_wf
0,22
postcript
pdf
the_w
:World,
x
:Id,
e
:E. (
x
when
e
)
vartype(loc(
e
);
x
)
latex
Definitions
loc(
e
)
,
time(
e
)
,
(
x
when
e
)
,
vartype(
i
;
x
)
,
E
,
Id
,
World
,
x
:
A
.
B
(
x
)
,
t
T
Lemmas
w-time
wf
,
w-loc
wf
,
w-s
wf
,
world
wf
,
Id
wf
,
w-E
wf
origin
the_w:World, x:Id, e:E. (x when e) 
vartype(loc(e);x) the_w:World, x:Id, e:E. (x when e) vartype(loc(e);x) x:A. B(x) T