Definition:Domain (Category Theory)

This page is about Domain in the context of Category Theory. For other uses, see Domain.

Definition

Let $f: X \to Y$ be a morphism.

Then the domain of $f$ is defined to be the object $X$.

This is usually denoted $X = \Dom f$ or $X = \map D f$.

Also see

• Results about morphisms can be found here.

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