1,655 reputation
1728
bio website none
location United Kingdom
age 23
visits member for 2 years, 10 months
seen Aug 24 at 19:40

Currently studying for an Msc in Mathematics


Oct
29
accepted Closure w.r.t $|| . ||_\infty$
Oct
29
accepted Showing closure in the $\|\cdot\|_1$ norm
Oct
29
accepted The real numbers and the axiom of foundation
Oct
29
asked $f$ mapping open sets to open sets
Oct
26
awarded  Yearling
Oct
24
revised Prove $\sum_{i=0}^{n}\left(x_{i}^{n}\prod_{0\leq k\leq n}^{k\neq i}\frac{x-x_k}{x_i-x_k}\right)=x^n$
Formatting Latex better
Oct
24
suggested suggested edit on Prove $\sum_{i=0}^{n}\left(x_{i}^{n}\prod_{0\leq k\leq n}^{k\neq i}\frac{x-x_k}{x_i-x_k}\right)=x^n$
Oct
24
accepted Subspace topologies and unions
Oct
24
comment Finding the min of an integral
Are you missing a $\sqrt{}$ at the end?
Oct
24
comment Finding the min of an integral
Thanks very much, I have put in the details of the solution above- is that fine?
Oct
24
revised Finding the min of an integral
Filling in my answer
Oct
23
accepted Finding the min of an integral
Oct
23
comment Finding the min of an integral
@Alex yeah thanks sorry
Oct
23
revised Finding the min of an integral
added 4 characters in body
Oct
23
asked Finding the min of an integral
Oct
23
answered How can I Prove that $[(p \to\neg q) \wedge q] \to \neg p$ is a tautology?
Oct
23
revised How can I Prove that $[(p \to\neg q) \wedge q] \to \neg p$ is a tautology?
missing or sign
Oct
23
suggested suggested edit on How can I Prove that $[(p \to\neg q) \wedge q] \to \neg p$ is a tautology?
Oct
22
comment Subspace topologies and unions
Ok, cool but it is the union of (union of open balls in A) and (union of open balls in B)- this is what I should have claimed (not the union of an open ball in A and open ball in B). Thanks for the help
Oct
22
comment Subspace topologies and unions
So I just need that any open ball in $A\cup B$ is the union of (unions of open balls in A) and (unions of open balls in B). Then when I'm using the map f I can just consider f on open balls?