module TheHoTTGame.Trinitarianism.AsCats where {- Here are some things that we could like to have in a category (in which we want to do maths e.g. the category of sets) * Initial objects (empty set) * Terminal objects (singleton) * Sums * Products * Cartesian closed (for two objects A B, maps A → B are also an object in the category) * Natural numbers object (the natural numbers ℕ in Set) * and maybe more -}