Nuprl Lemma : rel_rev_implies_weakening
11,40
postcript
pdf
T
:Type,
R1
,
R2
:(
T
T
).
R1
R2
R1
R2
latex
Definitions
Type
,
t
T
,
,
x
:
A
B
(
x
)
,
f
(
a
)
,
x
:
A
.
B
(
x
)
,
P
Q
,
x
f
y
,
P
Q
,
P
Q
,
P
&
Q
,
R1
=>
R2
,
R1
R2
,
R1
R2
Lemmas
iff
wf
origin
T:Type, R1, R2:(T
T
). R1 
R2 R1 R2 T:Type, R1, R2:(TT). R1 R2 R1 R2 
TB(x)x:A. B(x) Q Q Q R2 R2