Conglomerate (set theory)

In mathematics, a conglomerate is a definable collection of classes, just as a class is a definable collection of sets.^[1] A quasi-category is like a category except that its objects and morphisms form conglomerates instead of classes.^[1] The subclasses of any class, and in particular, the collection of all classes (every class is a subclass of the class of all sets), form a conglomerate.

References

1. Adamek, Jiri; Herrlich, Horst; Strecker, George (1990). Abstract and Concrete Categories: The Joy of Cats. Dover Publications. ISBN 978-0-486-46934-8.