How to prove the symmetrical relation for the following statement?
138436
How to prove reflexivity, symmetry and transitivity for the following relation?
33526
How to prove this beautiful statement on linear forms using induction?
97659
Am I on the right track to proving this statement about composite function?
113083
How to prove a set equality?
15312
Show that $R \cap R^{−1}$ is an equivalence relation on $X$?
133076
Prove this sum equal to an expression.
107992
Bilinear form with symmetric "perpendicular" relation is either symmetric or skew-symmetric
28003
How to prove $A+ A^T$ symmetric, $A-A^T$ skew-symmetric.
1932
How to show this equality of $\rho(X,Y)$
39405
Symmetric difference = Ø
15626
Relations of a~b iff b = ak^2
106140
The sum of two symmetric random variables is symmetric
2251
Can someone give me a hint on how to prove this?
4610
Proving an identity with a combinatorial proof: $\binom{n}{k}\binom{k}{r}=\binom{n}{r}\binom{n-r}{k-r}$
73892
Prove $Σ_{cyc}\frac{1}{\left(a+1\right)^2}+\frac{1}{a+b+c+1}\ge 1$
40596
Proving a relation between inradius ,circumradius and exradii in a triangle
61483
Prove the following identity combinatorially