Nuprl Lemma : rel_inverse_exp
4,23
postcript
pdf
T
:Type,
R
:(
T
T
Prop),
n
:
,
x
,
y
:
T
. (
x
R
^
n
^-1
y
)
(
x
R
^-1^
n
y
)
latex
Definitions
A
B
,
A
,
False
,
P
Q
,
x
f
y
,
R
^-1
,
R
^
n
,
i
j
,
P
Q
,
Prop
,
x
:
A
.
B
(
x
)
,
t
T
,
,
i
=
j
,
P
&
Q
,
P
Q
,
Unit
,
,
b
,
b
,
x
:
A
.
B
(
x
)
,
SQType(
T
)
,
{
T
}
,
True
Lemmas
rel
exp
add
,
assert
wf
,
not
wf
,
bnot
wf
,
bool
wf
,
eq
int
wf
,
assert
of
eq
int
,
not
functionality
wrt
iff
,
assert
of
bnot
,
iff
transitivity
,
eqff
to
assert
,
eqtt
to
assert
,
rel
inverse
wf
,
rel
exp
wf
,
le
wf
,
nat
wf
,
nat
properties
,
ge
wf
origin