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Erdős problem 1090

Let k3k\geq 3. Does there exist a finite set AR2A\subset \mathbb{R}^2 such that, in any 22-colouring of AA, there exists a line which contains at least kk points from AA, and all the points of AA on the line have the same colour?

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Problem row
sha256:0e6179ef3c2ca8f6717d164b453ecff46cdd9ee87faa42387b0067bc6cda4466
Metadata
sha256:d80ab7ea01f42e2d6716161ee96d480896d07d32e2f94edfcf9016145593ef40
Observation
sha256:8c823d621b7e1256c8e47c60a5f1c54c016a5507e6f27b2bab537f6f5f232067
Content
sha256:5de8975f8e17e695026f062a2f717728b144962cb360c10297a7089f52581906
Repository
sha256:a956b84c437202e5a02cc9e036a621bd14a302b34a75758115730bdbb77c52a4
Projection
sha256:c9d14c459c518937e758918b5897dc3b22f1a55f07739afe99502f5b046c907a
Source commit
2415f78e850aeee50afdca525c6f2e0ea606f207

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