The Borsuk-Ulam theorem from topology solving a counting puzzle. Truly unexpected, truly beautiful.

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# Category: Topology

## Who (else) cares about topology? Stolen necklaces and Borsuk-Ulam by 3Blue1Brown

## A Proof That Some Spaces Can’t Be Cut by Kevin Hartnett, Quanta magazine

### Mathematicians have solved the century-old triangulation conjecture, a major problem in topology that asks whether all spaces can be subdivided into smaller units.

### A Proof That Some Spaces Can’t Be Cut

### by Kevin Hartnett

## Who cares about topology? Inscribed rectangle problem with 3Blue1Brown

## Topology at the Tonys by Evelyn Lamb, Scientific American

## Wonderful Topology Notes for Beginners via Singapore Maths Tuition

# Singapore Maths Tuition

## Dusa McDuff – the life of a mathematician

## Michael Atiyah: Beauty in Mathematics

The Borsuk-Ulam theorem from topology solving a counting puzzle. Truly unexpected, truly beautiful.

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“And the Tony Award for the best use of mathematics in a musical goes to…”

“Recently found a wonderful topology notes, suitable for beginners at: It starts by pondering the shape of the earth, then generalizes to other surfaces. It also has a nice section on Fundamental P…”