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Monochromatic Triangles

Let TT be an arbitrary nondegenerate triangle in the Euclidean plane. Does there exist a coloring c:R2{1,2,3}c:\mathbb{R}^2\to\{1,2,3\} such that no triangle congruent to TT has all three vertices assigned the same color?

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Boyuan Wang portraitBoyuan Wang
Minghan Wang portraitMinghan Wang
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