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UntilImpDiamond
⊢
T
until
f
⊃
f
UntilImpDiamond
Proof:
1
(
skip
∧
T
)
⋆
⌢ f
⊃
f
ChopImpDiamond
2
T
until
f
⊃
f
1
,
def. of
until
qed
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2024-08-03
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