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Hey, math nerds, I really want to know, why is Wikipedia saying that \(\wp(X)\) is a notation for the power set? First time I see the Weierstrass pe symbol used for something other than an elliptic curve, and I don't like it, my boy Weierstrass didn't write no power sets like that.

@JordiGH I've seen Ps with various degrees of swirliness denote powerset, but never the weierstrauss p.

From wikipedia "Talk:Power_set":

"℘ is really only used for the power set by people who don't know how to get a script looking P in LaTeX any other way."

@JordiGH That quote is from 2009, and no citation has been seen since.

@j Screw it, I've done it.

https://en.wikipedia.org/w/index.php?title=Power_set&diff=prev&oldid=1096936716

@JordiGH I found two uses on arxiv.

https://arxiv.org/abs/2002.06253

https://arxiv.org/abs/1002.4334

@j Dammit!

Are they published?

@j I feel like a reasonable editor should catch that mistake.

@Vierkantor I just couldn't take it anymore.

https://en.wikipedia.org/w/index.php?title=Power_set&diff=prev&oldid=1096936716

However, I note that the German Wikipedia also says it's a thing:

https://de.wikipedia.org/wiki/Diskussion:Potenzmenge#Was_ist_mit_diesem_Zeichen_hier

And you seem Dutch, which is close to Germany?

So maybe it's just German notation, the way that tg is Russian notation for the tangent. :)

JordiGH@JordiGH@mathstodon.xyzGimme a damn citation for that notation, Wikipedia.