In the spirit of hilariously advanced baby books like Chris Ferrie’s Quantum Physics for Babies, I have taken to incorporating absurdly sophisticated concepts into nursery rhymes.

To the tune of the ABC song (or, equivalently, Twinkle Twinkle Little Star):

The axioms of a group go 1, 2, 3

Identity, inverse, associativity!

The identity times any element g is g,

Inverse of g times g is identity,

Associativity says ab times c

is equal to a times bc.

Abstract algebra nursery rhyme

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