Nuprl Lemma : fpf-dom_wf
0,22
postcript
pdf
A
:Type,
eq
:EqDecider(
A
),
f
:
a
:
A
fp
Top,
x
:
A
.
x
dom(
f
)
latex
Definitions
a
:
A
fp
B
(
a
)
,
x
dom(
f
)
,
deq-member(
eq
;
x
;
L
)
,
1of(
t
)
,
x
.
t
(
x
)
,
(
x
l
)
,
Top
,
EqDecider(
T
)
,
x
:
A
.
B
(
x
)
,
t
T
Lemmas
deq
wf
,
top
wf
,
l
member
wf
,
pi1
wf
,
deq-member
wf
origin
A:Type, eq:EqDecider(A), f:a:A fp
Top, x:A. x 
dom(f) 
A:Type, eq:EqDecider(A), f:a:A fp Top, x:A. x dom(f) B(a) dom(f)
x. t(x) l)x:A. B(x) T