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NotAndHaltChopImpNext
⊢
¬
w
∧
(
halt
w
;
f
)
⊃
(
halt
w
;
f
)
NotAndHaltChopImpNext
Proof:
1
⊢
halt
w
;
f
≡
if
w
then
f
else
(
halt
w
;
f
)
HaltChopEqv
2
⊢ ¬
w
∧
(
halt
w
;
f
)
⊃
(
halt
w
;
f
)
1
,
Prop
qed
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2023-09-12
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