Nuprl Lemma : rel-star-iff-rel-plus-or
0,22
postcript
pdf
T
:Type,
R
:(
T
T
Prop),
x
,
y
:
T
. (
x
(
R
^*)
y
)
(
x
R
^+
y
)
x
=
y
latex
Definitions
i
=
j
,
Dec(
P
)
,
SQType(
T
)
,
{
T
}
,
A
B
,
A
,
False
,
R
^*
,
R
^+
,
P
Q
,
P
&
Q
,
P
Q
,
P
Q
,
,
x
:
A
.
B
(
x
)
,
,
x
f
y
,
rel_exp(
T
;
R
;
n
)
,
x
:
A
.
B
(
x
)
,
Prop
,
t
T
,
P
Q
Lemmas
nat
plus
inc
,
rel
exp
wf
,
nat
plus
wf
,
nat
wf
,
decidable
int
equal
,
le
wf
origin
T:Type, R:(T
TProp), x, y:T. (x (R^*) y) 
(x R^+ y) 
x = y T:Type, R:(TTProp), x, y:T. (x (R^*) y) (x R^+ y) x = y 
j
B
A Q
Q Q
x:A. B(x)
x:A. B(x)
T Q