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CSChopEqvOrChopPlusChop
⊢
f
∗
;
g
≡
g
∨
f
+
;
g
CSChopEqvOrChopPlusChop
Proof:
1
⊢
f
∗
≡
empty
∨
f
+
def. of
∗
2
⊢
f
∗
;
g
≡
g
∨
f
+
;
g
1
,
EmptyOrChopEqvRule
qed
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2023-09-12
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