Nuprl Lemma : da-outlinks-empty
0,22
postcript
pdf
ltg
:(IdLnk
Id
Type),
i
:Id. (
ltg
da-outlinks(;
i
))
False
latex
Definitions
,
da-outlinks(
da
;
i
)
,
(
x
l
)
,
da-outlink-f(
da
;
k
)
,
fpf-dom-list(
f
)
,
mapfilter(
f
;
P
;
L
)
,
Prop
,
l
[
i
]
,
x
:
A
.
B
(
x
)
,
||
as
||
,
IdLnk
,
Id
,
t
T
,
x
:
A
.
B
(
x
)
,
A
&
B
,
,
A
B
,
A
,
False
,
P
Q
Lemmas
Id
wf
,
IdLnk
wf
,
length
wf2
,
select
wf
,
nat
wf
origin