Nuprl Lemma : fpf-empty_wf
0,22
postcript
pdf
A
:Type,
B
:(
A
Type).
x
:
A
fp
B
(
x
)
latex
Definitions
{
T
}
,
P
Q
,
P
&
Q
,
False
,
P
Q
,
a
:
A
fp
B
(
a
)
,
,
,
Unit
,
(
x
l
)
,
x
:
A
.
B
(
x
)
,
x
(
s
)
,
t
T
Lemmas
l
member
wf
,
unit
wf
,
it
wf
,
nil
member
origin
A:Type, B:(A
Type). 
x:A fp B(x) A:Type, B:(AType). x:A fp B(x) 
Q
Q B(a)
l)x:A. B(x) T