New posts in big-list

Innocent looking open problems in real analysis

Lonely theorems [closed]

Closed forms of Nielsen polylogarithms $\int_0^1\frac{(\ln t)^{n-1}(\ln(1-z\,t))^p}{t}dt$?

High-School Level Introduction to Dynamical Systems

Math games for car journeys

Statements equivalent to the Axiom of Choice

Practical Tips: Mathematical research and discoveries [closed]

Algebraic geometry in representation theory?

Sources for mathematics outside the mathematics world

Examples of properties not preserved under homomorphism

What is a good way to introduce Euler's totient function?

What inequalities should one know to evaluate limits fluently?

"$n$ is even iff $n^2$ is even" and other simple statements to teach proof-writing

What are the postulates that can be used to derive geometry?

List of Mathematical Impossibilities proved using special tools

Elementary problems that would've been hard for past mathematicians, but are easy to solve today? [closed]

Applications of Probability Theory in pure mathematics

Mathematics, Philosophy and writing.

Important examples of measures which are not $\sigma$-finite

Recreational problems in set theory?