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Proof step 10 from proof div2-mult4-add-k (
previous step
)
(4 * n) % 2 = 0 ⊦ (4 * n) / 2 = 2 * n
User applied rule weakening
And obtained the following new goals
Proof step 11
:
⊦ (4 * n) / 2 = 2 * n
Rule argument
poslist: left 1
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