# Contents

## Definition

A homotopical functor $F : C \to D$ between two homotopical categories $C$ and $D$ is a functor which preserves the weak equivalences of $C$ (i.e., which sends all weak equivalences of $C$ to weak equivalences of $D$).

Last revised on March 30, 2016 at 04:21:33. See the history of this page for a list of all contributions to it.