**Definitions**

**Transfors between 2-categories**

**Morphisms in 2-categories**

**Structures in 2-categories**

**Limits in 2-categories**

**Structures on 2-categories**

A **strict 2-natural transformation** (sometimes called simply a “2-natural transformation”) is a lax natural transformation whose 2-cell components are identities. When the 2-categories and 2-functors involved are also strict (as is usually the case), these are the enriched natural transformations over the monoidal category Cat.

Last revised on May 18, 2023 at 13:46:35. See the history of this page for a list of all contributions to it.