Step of Proof: sq_stable__iff
9,38
postcript
pdf
Inference at
*
1
0
I
of proof for Lemma
sq
stable
iff
:
1.
P
:
2.
Q
:
3. SqStable(
P
)
4. SqStable(
Q
)
SqStable(
P
Q
)
latex
by PERMUTE{1:n, 2:n, 3:n, 4:n, 5:n, 4:n, 3:n, 6:n}
latex
1
: .....wf..... NILNIL
1:
(
P
Q
)
2
: .....wf..... NILNIL
2:
(
Q
P
)
3
: .....wf..... NILNIL
3:
P
4
: .....wf..... NILNIL
4:
Q
5
:
5:
SqStable(
Q
)
6
:
6:
SqStable(
P
)
.
Definitions
t
T
,
f
(
a
)
,
s
=
t
,
x
:
A
B
(
x
)
,
P
Q
,
SqStable(
P
)
,
,
x
:
A
.
B
(
x
)
,
P
Q
,
P
Q
,
P
Q
Lemmas
sq
stable
implies
,
sq
stable
and
origin