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  • 0 posts edited
  • 9 helpful flags
  • 432 votes cast
Nov
14
comment Proof/intuition that any number can be expressed in binary form and every number will have a unique representation?
Every real number? Or every integer?
Nov
9
reviewed Reviewed Find the sum of this series
Sep
5
comment injective and surjective
Keep one thing in your mind when you try to prove this kind of statement: $f \circ g$ is just another function. You start with let $h = f \circ g$, then prove $h$ is bijective using whatever conditions $f$ and $g$ have.
Aug
25
comment Finiteness of subgroup $\rightarrow$ Finiteness of the group
@M.Vinay Yes, you're right. But, it's not clear to me where did this answer show $|G/H|$ is finite before using Lagranges's theorem?
Aug
25
comment Finiteness of subgroup $\rightarrow$ Finiteness of the group
I thought Lagranges's theorem starts with "For any finite group $G$".
Aug
25
awarded  Custodian
Aug
17
revised Category Theory vs. Universal Algebra - Any References?
Add link and tag
Aug
17
awarded  Nice Question
Mar
2
awarded  Yearling
Feb
13
comment What mathematics should I study to understand Neural Nets / Machine Learning?
The OP does not need to study staticstics?
Dec
24
comment Websites that promote co-operation and social networking among mathematicians
@GitGud Again, I read the entire question. This question has nothing to do with Math.SE at all. The downvote is for the mismatch between the first paragraph and the second one.
Dec
24
comment Websites that promote co-operation and social networking among mathematicians
I read the entire question. I downvote it because I think we are no facebook. We are a community. We are a Q&A site. I don't know about others. I come here to learn math, not to socialize.
Dec
9
awarded  Caucus
Sep
24
awarded  Autobiographer
Jul
9
reviewed No Action Needed Comparison test involiving e
Jul
2
awarded  Curious
Jun
19
reviewed No Action Needed How to perform a monotonic function fitting of data points?
Mar
15
awarded  Popular Question
Jan
21
comment Largest white rectangle on board
Cross posted on CS.SE
Dec
6
comment Routing Automaton
@ArthurFischer I am not sure the routing automata here is different from synchronizable DFA in Exercise 1.59 of Sipser's book. If they are the same, I think this is a homework problem.