Commit 2024-02-13 21:51 d13557bc

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feat: (a + b) ^ n ≤ 2 ^ (n - 1) * (a ^ n + b ^ n) (#9484) Note that this inequality is trivial if the constant is 2 ^ n instead. Due to the current import situation, I've had to downgrade the proof to not use gcongr, positivity, ring. This is currently hard to fix. From LeanAPAP

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