Mathematics
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posilon
  • Member for 10 years, 1 month
  • Last seen more than 2 years ago
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All Questions Answers
Score Newest
answer
21
If $(a + ib)^3 = 8$, prove that $a^2 + b^2 = 4$
Oct 18, 2014
answer
11
Is it possible to prove $\sum_{k=0}^n \binom{n\vphantom{k}}{k} \binom{k}{m} = \binom{n\vphantom{k}}{m} 2^{n-m}$ combinatorially?
Oct 25, 2013
answer
9
How To Present Algebraic Topology To Non-Mathematicians?
Oct 26, 2013
answer
7
Difficulties in stating mean value theorem for functions which are not continuous on a closed interval.
Feb 25, 2018
question
6
Let $T$ be the set of full binary trees. In what way $T^7 \cong T$?
Jul 24, 2015
question
5
Examples of categories of the form $\operatorname{Hom}(X,-)$ or $\operatorname{Hom}(-,X)$
Feb 14, 2017
answer
5
No of Unique ways to travel from A to B In 800 feet?
Sep 11, 2020
answer
5
Prove cyclic group with one generator can have atmost 2 elements
Mar 29, 2015
answer
5
Fixed points under action of conjugate group elements
Sep 11, 2015
answer
4
Natural deduction - sequent not valid (not provable)?
Jul 19, 2019

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