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I was trying to figure out why the (oriented) connect sum of two oriented manifolds should be oriented. Here the oriented connect sum $M_1\# M_2$ of two $n$-manifolds $M_1$ and $M_2$ is taken to be the manifold gotten by gluing the two manifolds with interior of closed disks $B_1^0$ and $B_2^0$ r...
I'm new here and I've just found a small bug in tag synonyms. This bug appears in both main and meta Math Stackexchange.
Some tags have synonyms, such as, in Math Stackexchange, tag span is a synonym for tag linear-algebra, and counting is a synonym for combinatorics. The tag synonyms seems don't...
Proposal: Synonimze the meta tag proof-verification with solution-verification.
The main tag proof-verification is synonimized with solution-verification: this was raised in What is the usefulness of having "proof-verification" and "solution-verification" as different tags?.
I propose that we do...
