Nuprl Lemma : equipollent-void-domain
11,40
postcript
pdf
A
:Type. {0..0
}
A
~ {0..1
}
latex
Definitions
Type
,
t
T
,
{
i
..
j
}
,
x
:
A
B
(
x
)
,
Bij(
A
;
B
;
f
)
,
x
:
A
B
(
x
)
,
x
:
A
.
B
(
x
)
,
x
:
A
.
B
(
x
)
,
A
~
B
,
s
=
t
,
P
Q
,
False
,
A
,
P
&
Q
,
A
B
,
i
j
<
k
,
,
{
x
:
A
|
B
(
x
)}
,
,
a
<
b
,
True
,
T
,
Surj(
A
;
B
;
f
)
,
Inj(
A
;
B
;
f
)
,
Void
,
,
#$n
,
x
.
A
(
x
)
Lemmas
le
wf
,
biject
wf
,
int
seg
wf
origin
A:Type. {0..0
}
A ~ {0..1} A:Type. {0..0}A ~ {0..1} 
T}B(x)
B(x)
x:A. B(x)x:A. B(x)
Q
A
B j < k
T
x.A(x)