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A comment on Rare Greek Variables.

Re:Rare Greek Variables by gfaure on Sunday November 28, 2021 @12:37AM (#29366473)
The Yoneda embedding is denoted in a few works by よ (the hiragana for the first syllable in Yoneda's name): https://ncatlab.org/nlab/show/Yoneda+embedding.

This is the only use of Japanese script in mainstream English-language mathematics that I'm aware of, although I'd love to be proven wrong.

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Re:Rare Greek Variables by qznc on Sunday November 28, 2021 @06:47AM (#29368134)
A colleague of mine ran out of greek letters in his thesis. He added hebrew letters.

(pdf: http://www.andreas-lochbihler.de/pub/lochbihler06diplomarbei... look at the index at the end)

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Re:Rare Greek Variables by rwmj on Sunday November 28, 2021 @07:09AM (#29368255)
Aleph is a Hebrew letter I think? It's used for describing infinities: https://en.wikipedia.org/wiki/Aleph_number
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Re:Rare Greek Variables by mbg721 on Sunday November 28, 2021 @08:36AM (#29368783)
Well, you'd skip that one just like you'd skip lower-case pi,
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