News for hackers. Stuff that matters.

A comment on An update on the campaign to defend serious math education in California. Parent comment

Re:An update on the campaign to defend serious math educatio... by ludwigschubert on Tuesday April 26, 2022 @05:21PM (#31173354)
It’s a symbol that goes by many names: the tombstone, end-of-proof, or Q.E.D.

"∎"

[ Parent | on HN ]
Re:An update on the campaign to defend serious math educatio... by snvzz on Tuesday April 26, 2022 @10:20PM (#31175543)
Interesting.

I wasn't familiar with this, despite being a graduate. Its use might depend wildly on where.

[ Parent | on HN ]