“A guy walks into a bar...” is a typical form of what has been called the “bar joke.” A math version is:

*“A bar walks into a commutative algebraist”*

The joke was posted on Twitter by brocialist reply guy on August 20, 2008.

Wikipedia: Commutative algebra

*Commutative algebra* is the branch of algebra that studies commutative rings, their ideals, and modules over such rings. Both algebraic geometry and algebraic number theory build on commutative algebra. Prominent examples of commutative rings include polynomial rings; rings of algebraic integers, including the ordinary integers {\displaystyle \mathbb {Z} }\mathbb {Z} ; and *p*-adic integers.

Twitter

brocialist reply guy

@sick_riff_dude

A bar walks into a commutative algebraist

11:01 AM · Aug 20, 2008·Twitter Web Client

Google Books

*The Best ‘A Man Walks Into a Bar’ Jokes*

By Billy Brownless

London, UK: Allen & Unwin

2009

Pg. 5:

A BAR WALKS INTO A COMMUTATIVE algebraist.

Google Groups: pun-ctilious

The Parable of poor Polly Nomial

*logik*

11/26/09

(...)

A bar walks into a commutative algebraist.

Twitter

Roger Guldbrandsen

@kinbiko

So… A bar walks into a commutative algebraist…

*giggles*

8:42 AM · Jul 2, 2012·Twitter Web Client

Twitter

Drake Akens

@DrakeQRandom

A bar walks into a commutative algebraist.

7:10 AM · Dec 11, 2013·Twitter Web Client

Twitter

Algonquin K Farquhar, Esq

@buddhatree

A bar walks into a commutative algebraist.

9:59 PM · Dec 9, 2014·Twitter Web Client

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