(mathoverflow.net)

283 points IdealeZahlen | 1 comments | 14 Nov 24 16:28 UTC | HN request time: 0.539s | source

1. purplejacket ◴[15 Nov 24 18:07 UTC] No.42149348[source]▶

So this letter ℘ is distinct from another unicode symbol (that I can't copy-paste here?), which we often use for "power set" in math; it's given by U+1D4AB.

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The letter ℘: name and origin? (2017)