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Jul
10
revised Check if $(\mathbb Z_7, \odot)$ is an abelian group, issue in finding inverse element
Replace faked arrows with \xrightarrow and \xleftarrow
Jul
10
suggested approved edit on Check if $(\mathbb Z_7, \odot)$ is an abelian group, issue in finding inverse element
Apr
26
comment What is $\limsup\limits_{n\to\infty} \cos (n)$, when $n$ is a natural number?
@Fabian, yes, there is a bug with \limsup and \liminf in SVG mode. It will be fixed in the net release of MathJax.
Apr
21
awarded  Editor
Apr
21
comment Showing there is an exact sequence
I have made some edits to improve the layout of the commutative diagram, but it won't be available until peer reviewed, since I don't have editing privileges.
Apr
21
revised Showing there is an exact sequence
Improved commutative diagrams
Apr
21
suggested approved edit on Showing there is an exact sequence
Apr
20
comment Covering dimension of the union
Your example should be {\rm Int} A rather than \rm{Int} A, since \rm doesn't take a parameter — it is simply a switch that changes the current font.
Apr
5
awarded  Convention
Feb
1
awarded  Quorum