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May
11
asked Confused about the prime elements of a ring.
May
10
asked Need help determining what this center is isomorphic to
May
8
asked Help show the following isomorphism cannot exist.
May
4
asked Finding an ideal such that $\mathbb{Z}[x]/I \cong \mathbb{Z}[i]$.
Mar
20
asked Can I use Burnside's Theorem? Or should I take a different approach for this proof?
Mar
19
asked How do you apply an element on the left of a permutation?
Mar
18
answered What about my proof is “nonsense”?
Mar
18
asked What about my proof is “nonsense”?
Mar
16
asked Help with proving property of Rubik's cube.
Mar
13
asked How should I continue my proof of this cycle property? (And did I make a mistake?)
Feb
18
answered Where does the function $f(x) =\Big[\frac{1}{2}*x\Big]$ contain discontinuities, left or right continuous?
Feb
13
asked Prove $\mathbb{Z} \times \mathbb{Z} / \left\langle (6,9)\right\rangle$ has an element of order 3
Feb
9
answered Integrating absolute complex exponential function
Feb
9
asked Trouble showing the addition of the fractional parts are a group.
Jan
31
answered Limit of sequence $n!\left(\frac{e}{n}\right)^n$
Dec
7
answered Is the term “telescoping product” well known?
Sep
4
asked Is this a valid proof technique regarding the divisibility of numbers?
Sep
4
answered Verify that $\sqrt{2}\left\| z \right\| \ge \left|\Re(z)\right| + \left|\Im(z)\right|$
Sep
1
asked Help with determining irrationality of a number?
Sep
1
asked May I have a hint for this gcd problem?