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Aug
29
revised Showing a function $f$ cannot be surjective
TeX formatting, fixed typos
Aug
26
revised If $b \equiv 0 \pmod a$ and $c \equiv 0 \pmod b$, then $c \equiv 0 \pmod a$
TeXified formulas
Aug
24
revised Intuition about an orthogonal projection operator for matrices
clarified the post (see comments)
Aug
23
revised The value of limit $y^3/(x^3 – y^2 - 1)$ as$ (x,y) \rightarrow(1,0) $along the line$ y = x-1$?
fixed LaTeX in title
Aug
18
revised Determining if two numbers are relatively prime.
fixed error
Aug
15
revised Generalized modulo arithmetic
fixed errors
Aug
15
revised Generalized modulo arithmetic
added 856 characters in body
Aug
13
revised How to prove or disprove $n^{28} = O(2^n)$
added 4 characters in body
Jul
12
revised Probability of winning a tournament by winning all matches in tournament
added 7 characters in body
Jul
11
revised Zero to the zero power - Is $0^0=1$?
improved formatting
Jun
27
revised How is the area of a circle calculated using basic mathematics?
added how to get the correct radius to take for the shell
Jun
18
revised Why are we defining the norms on certain vector spaces the way they are?
Removed incorrect norm
May
16
revised Vector Spaces: Redundant Axiom?
added 5 characters in body
May
15
revised Riemann's genus???
Marked quote as such
May
14
revised Graphing a parabola
MathJax
May
14
revised If $ab=ba$, Prove $a^2$ commutes with $b^2$
added 295 characters in body
May
2
revised Is there fundamental goal of mathematics?
Corrected spelling of Gödel
May
2
revised Intersection of two sets which are equivalence on set A is always equivalence?
added 120 characters in body
May
2
revised Give an example to show that convergence of $|x_n|$ does not imply the convergence of $x_n$
added 369 characters in body
May
2
revised Why is a “reverse surjection” incorrect?
expanded a bit about the differences when using functions and general relations