estoy-re-sebado's blog

Online Judge for Math Problems?
By estoy-re-sebado, history, 13 months ago, In English

Several months ago I came across an online judge, IIRC called Mathforces, that let you submit [Lean](https://en.wikipedia.org/wiki/Lean_(proof_assistant)) proofs for math problems.

The problem is I can't seem to find it anymore. Does anyone know what came of it? And if it's still online, what the current URL is? Or if you know who created it, how to get in contact with them?

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13 months ago, hide # |
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    13 months ago, hide # ^ |
     
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    I don't think that's it. The one I'm thinking of let you submit proofs written in Lean and you'd get a verdict right away, like a competitive programming online judge.

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13 months ago, hide # |
 
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wsp i met you at orz

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Codewars has some

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This online judge supports checking proofs with Isabelle, Coq/Rocq and Lean: https://do.proof.in.tum.de/competitions/

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8 months ago, hide # |
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I know it's an old post but could it be that you are referring to this blog? There is also a more recent follow-up. I am currently working on it, you can check it out at leanoj.org.

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    8 months ago, hide # ^ |
     
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    Definitely not the site I originally visited, but it's exactly what I was looking for. I'll try to make some time to log in and submit some problems.

    Keep up the good work!

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