Step of Proof: decidable__implies_better
11,40
postcript
pdf
Inference at
*
1
1
I
of proof for Lemma
decidable
implies
better
:
1.
P
:
2.
Q
:
x
:
P
.
3. Dec(
P
)
4.
P
Dec(
Q
)
Dec(
P
Q
)
latex
by Unfold `decidable` 0 THEN D (-2)
latex
1
:
1:
3.
P
1:
4.
P
Dec(
Q
)
1:
(
P
Q
)
(
(
P
Q
))
2
:
2:
3.
P
2:
4.
P
Dec(
Q
)
2:
(
P
Q
)
(
(
P
Q
))
.
Definitions
Dec(
P
)
,
P
Q
origin