- #1
jostpuur
- 2,116
- 19
I encountered notation that I don't know. It's like T|A where T is a mapping, and A is a set (little like a restriction), but the | is an arrow pointing upwards and the left hook is missing like with an arrow of a weak convergence.
Anyone knowing what that means? Or a keyword that I could put in google (I cannot put that half arrow there)
Anyone knowing what that means? Or a keyword that I could put in google (I cannot put that half arrow there)