New posts in alternative-proof

Prove that $2018^{2019}> 2019^{2018}$ without induction, without Newton's binomial formula and without Calculus.

Alternative proof of $\sqrt{2}$ is irrational assistance.

Fascinating induction problem with numerous interpretations

What is the relation between 'the order of $x^k = n/{\gcd(k,n)}$' and Lagrange's Theorem?

Is there some elementary proof of invariance of domain?

How to prove this algebraic version of the sine law?

Is there an easy way to see that this simple recurrence is 9-periodic? [duplicate]

How is Leibniz's rule for the derivative of a product related to the binomial formula? [duplicate]

Proving that $\sqrt{2}$ is irrational with a math level of a middle school student?

Diagonals of quadrilateral $ABCD$ intersect at $E$. Given $\frac{AE}{AC} = λ,\>\frac{BE}{BD} = μ$. Find ratios for sides

A trivial proof of Bertrand's postulate

Use $\delta-\epsilon$ to show that $\lim_{n\to\infty} a^{\frac{1}{n}} = 1$?

Exercise 6, Section 17 of Munkres’ Topology

Prove that $x-1$ is a factor of $x^n-1$

Proof $\int_{-\infty}^\infty\frac{dx}{\left(e^x+e^{-x}+e^{ix\sqrt{3}}\right)^2}=\frac{1}{3}$

Is this proof that $\sqrt 2$ is irrational correct?

Proof that a certain entire function is a polynomial

How to show that $\lfloor n/1\rfloor+\lfloor n/2 \rfloor+....+\lfloor n/n\rfloor+\lfloor{\sqrt{n}}\rfloor$ is even?

Exercise 9, Section 17 of Munkres’ Topology [duplicate]

Does Nakayama Lemma imply Cayley-Hamilton Theorem?