False Proof of $0^0=1$
14150
Zero to the zero power – is $0^0=1$?
145466
Is this a valid mathematical proof?
25775
How to prove $(1+1/x)^x$ is increasing when $x>0$?
33705
Is $0$ a natural number?
64500
$\aleph_1 = 2^{\aleph_0}$
52108
how to prove Exponential is strictly positive?
3433
Proof if $a \vec v = 0$ then $a = 0$ or $\vec v = 0$
141540
What is wrong with the following "proof" that $e=1$?
61472
If $0<x<y$, then prove that $\sqrt{x} <\sqrt{y}$ and $x <\sqrt{xy} <y$
107450
False proof that $ρe^{iθ} = ρ$ and so complex numbers do not exist?
67291
Prove that there exists $n\in\mathbb{N}$ such that $f^{(n)}$ has at least n+1 zeros on $(-1,1)$
22232
Proving that cardinality of the reals = cardinality of $[0,1]$
16177
Proof by Induction: $\sum_0^nx^i=(1-x^{n+1})/(1-x)$
32524
Flawed proof that all positive integers are equal
155757
Number theory: $x^y + 1 = y^x$
110826
prove that : $ i = \sqrt {-1}\ $
108923
What is wrong with this false proof? $-1=(-1)^1=(-1)^\frac{2}{2}=((-1)^2)^\frac{1}{2}=\sqrt{(-1)^2}=\sqrt{1}=1$