Does square difference prove that 1 = 2?
39908
Finding the error in this proof that 1=2
86030
Prove or disprove - If a divides b and b divides a does a=b
83862
How to prove that the number $1!+2!+3!+...+n!$ is never square?
6275
How can you prove that the square root of two is irrational?
120093
Proof of inequality $2(\sqrt{n+1}-\sqrt{n}) < \frac{1}{\sqrt{n}} < 2(\sqrt{n} - \sqrt{n-1})$ using induction
108873
How would one be able to prove mathematically that $1+1 = 2$?
5729
If $a^2+b^2+c^2=1$ then prove the following.
135458
When is a sum of consecutive squares equal to a square?
108923
What is wrong with this false proof? $-1=(-1)^1=(-1)^\frac{2}{2}=((-1)^2)^\frac{1}{2}=\sqrt{(-1)^2}=\sqrt{1}=1$
49750
Proof of the square root inequality $2\sqrt{n+1}-2\sqrt{n}<\frac{1}{\sqrt{n}}<2\sqrt{n}-2\sqrt{n-1}$
87764
Prove that the difference between two rational numbers is rational
67605
Different proof that $\sqrt{2}$ is irrational
121469
Proof of observations on natural numbers being expressed as differences of squares.
69279
If $\gcd(a,b)=1$ then, $\gcd(a^2,b^2)=1$
127566
$2AB$ is a perfect square and $A+B$ is not a perfect square
19588
$n!+1$ being a perfect square
136064
How can I prove that $\gcd(a,b)=1\implies \gcd(a^2,b^2)=1$ without using prime decomposition?