identity functor

Fetched 2026-10-26 (cache).

Synonyms: identity function

Antonyms: identity function

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|category theory}} A [[functor]] from a category to itself which maps each object of that category to itself and each morphism of that category to itself.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.