Nuprl Lemma : fpf-compatible-join2
0,22
postcript
pdf
A
:Type,
eq
:EqDecider(
A
),
B
:(
A
Type),
f
,
g
,
h
:
a
:
A
fp
B
(
a
).
f
||
h
g
||
h
f
g
||
h
latex
Definitions
P
Q
,
x
:
A
.
B
(
x
)
,
x
.
t
(
x
)
,
x
(
s
)
,
f
||
g
,
f
g
,
t
T
,
EqDecider(
T
)
,
a
:
A
fp
B
(
a
)
Lemmas
fpf-compatible
wf
,
fpf
wf
,
deq
wf
,
fpf-join
wf
,
fpf-compatible-join
,
fpf-compatible-symmetry
origin
A:Type, eq:EqDecider(A), B:(A
Type), f, g, h:a:A fp B(a). f || h 
g || h f 
g || h A:Type, eq:EqDecider(A), B:(AType), f, g, h:a:A fp B(a). f || h g || h f g || h Qx:A. B(x)
x. t(x) g
T B(a)