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mathstodon.xyz is one of the many independent Mastodon servers you can use to participate in the fediverse.
A Mastodon instance for maths people. We have LaTeX rendering in the web interface!

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Joana de Castro Arnaud

@alisonkiddle 8-part radial symmetry, in both one tile and in the 4-tile set.
Foreground-background illusion (they alternate); only the orangey symbols are unambiguously foreground.

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