initial object
An object within a category which sends out arrows to all other objects in that category, and such that each of these arrows is unique.
Noun
- An object within a category which sends out arrows to all other objects in that category, and such that each of these arrows is unique.
- In the category of sets, the initial object is the empty set, since there exists a unique function, namely the empty function, from the empty set into any other given set.