Category
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A category is an abstract mathematical object that generalizes the ideas of maps and commutative diagrams.
Category is a graduate-level concept that would be first encountered in an abstract algebra course.
Prerequisites
| Module: | A module is a generalization of a vector space in which the scalars form a ring rather than a field. |
| Ring: | In mathematics, a ring is an Abelian group together with a rule for multiplying its elements. |