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BfImpDfEqvDf
⊢
(
f
≡
g
)
⊃
f
≡
g
BfImpDfEqvDf
Proof:
1
(
f
≡
g
)
⊃
(
f ⌢
true
)
≡
(
g ⌢
true
)
BfChopEqvChop
2
(
f
≡
g
)
⊃
f
≡
g
1
,
def. of
qed
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2023-09-12
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