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Jun 30, 2017 at 6:58 vote accept Mikhail Katz
Jun 29, 2017 at 18:36 history edited Fedor Petrov CC BY-SA 3.0
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Jun 29, 2017 at 18:35 answer added Fedor Petrov timeline score: 9
Jun 29, 2017 at 13:54 comment added Pietro Majer Just mollify $f$ by convolution (let's assume wlog $f$ is defined on $\mathbb{R}$). Then the $f_\epsilon$ are $4A+B$ Lipschitz because the result of the smooth case applies, therefore $f$ too.
Jun 29, 2017 at 13:11 history asked Mikhail Katz CC BY-SA 3.0