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Feb
5
awarded  Great Answer
Feb
4
awarded  Good Question
Jan
11
revised Computing Krull dimension of $\mathbb{Z}[X_1,\ldots,X_n]/I$
added 10 characters in body; edited title
Jan
8
revised Why all $3$-cycles are conjugate in $\mathfrak S_5$?
added 1 character in body; edited tags; edited title
Jan
7
awarded  Revival
Dec
26
revised How to prove that the $\lceil x y \rceil \le \lceil x\rceil\lceil y\rceil$ for real numbers $x, y$?
added 217 characters in body
Dec
26
revised What is the meaning of $\mathbb{N_0}$?
[Edit removed during grace period]
Dec
26
revised Did the U.S. Army use a formula to evaluate fitness performance?
added 17 characters in body
Dec
25
revised Is it really true that the Cartesian product $\mathbb R^2 \times \mathbb R^3$ is not equal to $\mathbb R^5$?
edited title
Dec
25
comment Is it really true that the Cartesian product $\mathbb R^2 \times \mathbb R^3$ is not equal to $\mathbb R^5$?
@DahnJahn: Part of what helps the effectiveness of searches in general is using titles that are not comprised solely of MathJax.
Dec
25
revised Is it really true that the Cartesian product $\mathbb R^2 \times \mathbb R^3$ is not equal to $\mathbb R^5$?
edited title
Dec
24
revised How to find $a^b$, where $a$ and $b$have more than $10$ digits?
added 1 character in body; edited tags; edited title
Dec
22
revised Does there exist a neighborhood around a real number on the real line whose complement is finite?
added 91 characters in body
Dec
20
awarded  group-theory
Dec
14
awarded  Enlightened
Dec
14
awarded  Nice Answer
Dec
12
revised Substitution principle example? (for ring homomorphisms $R[x]\to S$)
deleted 31 characters in body
Dec
12
revised Substitution principle example? (for ring homomorphisms $R[x]\to S$)
deleted 31 characters in body
Dec
12
comment Why does $\sqrt{x^2}$ seem to equal $x$ and not $|x|$ when you multiply the exponents?
@MoebiusCorzer: Every non-zero complex number has exactly two square roots in the complex numbers (whereas zero has exactly one square root, namely itself). The statement that $1$ has four square roots in the complex numbers is incorrect.
Dec
10
awarded  Popular Question