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2h
revised How to prove the elementary inequality?
added 644 characters in body
2d
revised How to prove there's a vector $z \in \mathbb{R}^4$ orthogonal to two linearly independent vectors $x,y \in \mathbb{R}^4$?
deleted 1 character in body
May
26
revised Prove this is a rectangle
edited body
May
26
revised Prove this is a rectangle
edited body
May
25
revised Connected-ness of the boundary of convex sets in $\mathbb R^n$ , $n>1$ , under additional assumptions of the convex set being compact or bounded
added 1307 characters in body
May
24
revised Recurrence equation $f(g\cdot x)/f(x)=t$
added 13 characters in body
May
24
revised Recurrence equation $f(g\cdot x)/f(x)=t$
edited title
May
24
revised Distances to the center of points uniformly distributed in a disk
added 74 characters in body
May
23
revised Understanding why $a+b\sqrt {2}\neq \sqrt {3} $
added 339 characters in body
May
23
revised Confusion between an element and its preimage
edited body
May
22
revised Show that the rings $2\mathbb{Z}$ and $3\mathbb{Z}$ are not isomorphic.
added 6 characters in body
May
22
revised $\{\,z\in \mathbb C : \operatorname{Im}(z)>-1 , |z|<2\, \}$ onto upper half space $\{\,z\in \mathbb C : \operatorname{Im}(z)>0 \,\}$
added 39 characters in body; edited title
May
20
revised Complicated real to real functional equation
deleted 5 characters in body
May
20
revised Complicated real to real functional equation
added 285 characters in body
May
20
revised Complicated real to real functional equation
added 296 characters in body
May
19
revised How to show $x,y,z \in A$ - Functions, Combinatorics
added 2 characters in body; edited title
May
19
revised Number of solutions of $x^2 + y^2 + z^2 = 0$ over finite fields.
deleted 91 characters in body
May
18
revised existence of $\lambda$ in $V^*$ in an $n$ dimensional vector space
deleted 28 characters in body
May
18
revised A set is not semialgebraic
added 666 characters in body
May
17
revised What are the possible sets of critical values of a complex polynomial of degree $n$?
added 50 characters in body