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Brian M. Scott earned this badge 188 times |
may 13 at 18:34
Prove that $(n, n + 1) = 1$ for all $n \gt 0$.
may 12 at 22:52
Project Euler, Problem #25
may 10 at 18:20
Finding $ \sum_{n=1}^\infty {{1} \over ({2n-1})^2} $ given $ \sum_{n=1} ^ \infty {{1} \over {n^2}} = {{\pi^2}\over {6}}$
may 10 at 11:09
Show that $z^{-1} = \frac{\bar z}{|z|^2}$
may 8 at 22:38
Why can I divide a fraction like this?
may 7 at 20:38
A question on second countable spaces
may 7 at 2:58
Lindelöf'ize a space?
may 6 at 22:01
Finding the number of subsets of S
may 6 at 21:56
Solving an equation with $x$ as powers
may 6 at 21:40
How many triangles
may 4 at 20:27
Is $(\pmb{1} + \pmb{\eta})\cdot\pmb{\omega_1} = \pmb{1} + \pmb{\eta}\cdot\pmb{\omega_1}$?
apr 25 at 17:39
Understanding quotient topology
apr 24 at 23:59
Which infinity is meant in limits?
apr 23 at 21:52
Intuition on group homomorphisms
apr 18 at 13:25
English words in written mathematics
apr 18 at 5:05
Why the need of Axiom of Countable Choice?
apr 17 at 9:39
Is $\mathbb{Q}/\mathbb{Z}$ isomorphic to $\mathbb{Q}$?
apr 15 at 12:30
Is this a consequence of the uncountability of a set?
mar 31 at 8:29
why $\log(n!)$ isn't zero?
mar 18 at 3:30
How to solve equations like $8^{2n+1} = 32^{n+1}$
mar 12 at 22:16
Existence of a sequence that has every element of $\mathbb N$ infinite number of times
mar 12 at 20:00
If every compact set is closed, then is the space Hausdorff?
mar 12 at 19:50
Examples of abelian subgroups of non-abelian groups.
mar 8 at 19:12
Comparing $2013!$ and $1007^{2013}$
mar 8 at 1:27
Any open subset of $\Bbb R$ is a countable union of disjoint open intervals. [Collecting Proofs]
mar 5 at 16:07
How to determine equation for $\sum_{k=1}^n k^3$
mar 2 at 18:47
Intersection of nested dense subsets.
feb 27 at 14:09
How would I solve $(x-3)(x-2)(x-1)\gt0$?
feb 25 at 16:14
Give a combinatorial proof
feb 24 at 22:23
Why does $\bigcup_{X \in \mathscr{P}(\mathbb{N})}X = \mathbb{N}$, instead of $\mathscr{P}(\mathbb{N})?$
feb 23 at 3:25
Prove that if $a$ and $b$ are distinct elements of a group $G$, then $a^2 \ne b^2$ or $a^3 \ne b^3$.
feb 22 at 15:19
Combination of a 4-digit number
feb 21 at 16:16
What's next in this number series?
jan 30 at 13:40
Unusual 5th grade problem, how to solve it
jan 27 at 12:17
Prove this product
jan 23 at 12:23
“How I wish I could calculate pi” analogs…
jan 22 at 2:47
Infinite cyclic group generated by every single element?
jan 16 at 14:22
Prove the following identity
jan 15 at 20:22
a Zeno's paradox about measure of infinite sets?
jan 13 at 4:54
What is the difference between a Subgroup and a subset?
jan 8 at 17:54
Why is the induction proof not sufficient? Topology…
jan 7 at 23:48
pronunciation of “Kunen”
jan 7 at 8:48
Books/Resources on generating functions
jan 2 at 18:23
Is writing 2K13 technically correct?
