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Tom Conlan
@tomconlan
Magma’s are the Eevee of algebraic structures. A magma consists of a set equipped with a single binary operation that must be closed by definition. No other properties are imposed. It’s common to find these various algebraic Pokémon in your travels. I like to think of them as evolved Magma’s. If you give your magma an associativity stone it will turn into a semi-group, if you give it the identity stone too it will become a monoid!
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cqb
@cqb
This is very cool, pulls together these concepts and clicked for me in a way it hadn't before!
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cqb
@cqb
Also didn't really realize that invertibility could be distinguished from divisibility, but it makes sense
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