Will I finish my proof of the five-color theorem by the end of the week?
17
170
330
resolved Feb 28
Resolved
NO

Resolves YES if I open a pull request with a sorry-free proof before market close:

https://github.com/leanprover-community/mathlib4/blob/lambda-fairy/minor/Mathlib/Combinatorics/SimpleGraph/FiveColor.lean

The pull request doesn't need to be merged, as long as I personally think it's ready for review.

I've made good progress so far, but I've been busy with work lately and might not finish in time.

I won't bet in this market.

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Still need to work out how best to represent graph contraction. Probably won't finish today.