Nuprl Lemma : rel_implies_functionality
11,40
postcript
pdf
T
:Type,
A1
,
A2
,
B1
,
B2
:(
T
T
).
A1
A2
B1
=>
B2
{
A1
=>
B1
A2
=>
B2
}
latex
Definitions
Type
,
t
T
,
,
x
:
A
B
(
x
)
,
f
(
a
)
,
x
f
y
,
P
Q
,
x
:
A
.
B
(
x
)
,
R1
=>
R2
,
{
T
}
,
R1
R2
origin
T:Type, A1, A2, B1, B2:(T
T
). A1 
A2 
B1 => B2 {A1 => B1 A2 => B2} T:Type, A1, A2, B1, B2:(TT). A1 A2 B1 => B2 {A1 => B1 A2 => B2} 
TB(x) Qx:A. B(x) R2