Is it possible to define $x+x+x+x...x$ times?
1002
Where is the flaw in this "proof" that 1=2? (Derivative of repeated addition)
39231
Construct a bijection between $\mathbb{Z}^+\times \mathbb{Z}^+$ and $\mathbb{Z}^+$
52078
Multinomial Coefficients Definition in expansion of $(1+x+x^2+\cdots+x^l)^n$
79925
Infinitely many values of $x$ that satisfy the equations
67678
When is "i += x" different from "i = i + x" in Python?
90068
Calculating the number of times a digit is written when given two numbers
113211
Arithmetics of cardinalities: if $|A|=|C|$ and $|B|=|D|$ then $|A\times B|=|D\times C|$
103223
If $x^a$ is $x$ multiplied $a$ times, then how does $x^{-1}$ make sense?
1906
Multiplying by a $1\times 1$ matrix?
157868
Is it wrong to say $ \sqrt{x} \times \sqrt{x} =\pm x,\forall x \in \mathbb{R}$?
80916
How to prove that if $A\subseteq A\times A$, then $A=\varnothing$?
25525
Rule for orderless function Times
34265
Is it possible to define custom compound assignment operators like ⊕= similar to built-ins +=, *= etc?
145256
Expanding out multiplied terms
76884
Are $X$ and $X+Y$ independent, if $X$ and $Y$ are independent?
143236
$ S_{n}=\frac{x}{x+1}+\frac{x^2}{(x+1)(x^2+1)}+...........+\frac{x^{2^{n}}}{(x+1)(x^2+1)...(x^{2^{n}}+1)}$
64656
how do you prove that $A\times (B\setminus C) = (A\times B) \setminus (A\times C)$?