Abstract Algebra

start - MathStructures

• url: https://math.chapman.edu/~jipsen/structures/doku.php/

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Mathematics and Computation | Alg

• url: https://math.andrej.com/2011/01/22/alg/

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Near-semiring - Wikipedia, the free encyclopedia

• url: https://en.wikipedia.org/wiki/Near-semiring

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Congruence relation - Wikipedia

• url: https://en.wikipedia.org/wiki/Congruence_relation

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Definition:Congruence Relation - ProofWiki

• url: https://proofwiki.org/wiki/Definition:Congruence_Relation

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