Nuprl Lemma : atom-free-int
0,22
postcript
pdf
i
:
. AtomFree(
;
i
)
latex
Definitions
t
T
,
left
+
right
,
P
Q
,
Dec(
P
)
,
x
:
A
.
B
(
x
)
,
,
AtomFree(
T
;
x
)
,
#$n
,
A
B
,
,
{
x
:
A
|
B
(
x
) }
,
x
:
A
B
(
x
)
,
P
Q
,
False
,
A
,
x
.
A
(
x
)
,
f
(
a
)
,
s
~
t
,
a
<
b
,
Void
,
-
n
Lemmas
atom-free-nat
,
le
wf
,
nat
wf
,
decidable
le
origin
i:
. AtomFree(;i) i:. AtomFree(;i) 
T
Qx:A. B(x)
B
B(x)
Q
A
x.A(x)