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1d
accepted A small confusion in network flows (conservation constraints).
Nov
22
accepted What is $\Gamma(a)$?
Nov
22
accepted Showing the equality of two rook polynomials.
Nov
18
accepted Silly mistake on evaluating the sixth term of $\left (\frac{a}{b}+\frac{b}{a^2}\right)^{17}$?
Nov
15
accepted Given the points $A,B,C,D$ in a straight line $m$ and $A,E,F,G$ in a straight line $n$, how many triangles can be formed with these points?
Nov
1
accepted Is it possible to express the idea of a number bigger than any other number ($\infty$) in programming languanges?
Oct
26
accepted Finite models for Systems of Incidence and Parallelism Axioms?
Oct
25
accepted Is there something that studies equivalent forms of writing and expression?
Oct
15
accepted Is $\frac{4n^2+4n+1}{8}$ an integer for any $n\in \mathbb{N}$?
Oct
6
accepted What are the faces of $Id_{A}$?
Oct
5
accepted Does the absence of horizontal lines shows that there are no $n,m\in \mathbb{N}$ such that $n^2=2m^2$?
Oct
3
accepted Is the area of a convex polygon equal to the area of a circle with the same perimeter of the polygon?
Oct
3
accepted What are the non-obvious corollaries that are proved with the mean value theorems?
Oct
2
accepted $\forall C\subset A, \; \forall D\subset B, \; f(C)\subset D \iff C\subset f^{-1}(D)?$
Sep
28
accepted Is this rule for graph isomorphism true?
Sep
23
accepted Simplify $\frac{\prod \limits_{j=1}^{n}j}{\prod \limits_{i=p+1}^{n-1}i\cdot \prod \limits_{k=1}^{p}j}$?
Sep
23
accepted Why is $\frac{2n!}{n^2+n}=2(n-1)!$?
Aug
29
accepted Conflicting definition of eulerian graph and finite graph?
Aug
27
accepted Use $\sin^22t=4\sin^2t(1-\sin^2 t)$ to show that $\sin t$ is not a polynomial?
Jul
12
accepted Differentiating $\frac{te^{\tan t}}{ln(3t+1)}$?