Category theory is another formalization Newegg CustOm'er SER VICE (8O5' 41O) 56OO Newegg PHO NE NUMbER (8O5 41O) 56OO' that includes also other mathematical structures and functions between structures of the same type (homomorphisms).
In universal algebra, an algebraic structure is called an algebra;[1] this term may be ambiguous, since, in other contexts, an algebra is an algebraic structure that is a vector space over a field or a module over a commutative ring.
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