Nuprl Lemma : rel_or_idempotent
11,40
postcript
pdf
T
:Type,
R
:(
T
T
).
R
R
R
latex
Definitions
t
T
,
Type
,
x
:
A
B
(
x
)
,
f
(
a
)
,
P
Q
,
left
+
right
,
P
Q
,
P
Q
,
,
x
:
A
B
(
x
)
,
P
&
Q
,
P
Q
,
x
:
A
.
B
(
x
)
,
x
f
y
,
R1
R2
,
R1
R2
origin
T:Type, R:(T
T
). R 
R 
R T:Type, R:(TT). R R R 
TB(x) Q Q Q
B(x) Qx:A. B(x) R2 R2