New posts in soft-question

Why are nets not used more in the teaching of point-set topology?

To what extent is a scheme morphism determined by its topological map?

Path Algebra for Categories

How to master integration and differentiation?

Mathematical notation around the world

Solvable and nilpotent groups, normal series and intuition

What problems are easier to solve in a higher dimension, i.e. 3D vs 2D?

Formal definition of "planar graph"

How can I explain topology to my grandmother?

Is there a difference between a geometric shape and a geometric figure?

Do we still add $C$ when integrating and the result is an arbitrary function?

Does $\mathsf{ZFC} + \neg\mathrm{Con}(\mathsf{ZFC})$ suffice as a foundations of mathematics?

Communicating mathematics

Sources for mathematics outside the mathematics world

Thinking outside of the box

Where can I find a review of discrete math

Is there a mathematical reason why rotation in the counterclockwise direction positive and clockwise rotation negative?

Factoring Quadratics: Asterisk Method

Categorification of characteristic polynomial

PDEs in biology