For the curious: "My favorite symbol is by the way `よ` which denotes the Yoneda embedding" which was named after its mathematician inventor/discoverer Yoneda [

For the curious: "My favorite symbol is by the way `よ` which denotes the Yoneda embedding" which was named after its mathematician inventor/discoverer Yoneda [1] The character is the syllable "Yo" in Japanese katakana, and although not everyone knows katakana, still it is mnemonic for "Yoneda" rather than being wholly arbitrary. [2] [1] https://en.wikipedia.org/wiki/Yoneda_lemma https://en.wikipedia.org/wiki/Yoneda_lemma [2] https://en.wikipedia.org/wiki/Yo_(kana) https://en.wikipedia.org/wiki/Yo_(kana)