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CSEqvCS
⊢
f
≡
g
⇒ ⊢
f
∗
≡
g
∗
CSEqvCS
Proof:
1
⊢
f
≡
g
given
2
⊢
f
+
≡
g
+
1
,
ChopPlusEqvChopPlus
3
⊢
empty
∨
f
+
≡
empty
∨
g
+
2
,
Prop
4
⊢
f
∗
≡
g
∗
3
,
def. of
∗
qed
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2024-08-03
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