- #1

billtodd

- 115

- 27

And it's written there:

What on earth is 'aggregate', and what are those abstract elements?Definition(Eilenberg & Mac Lane 1945): A category C𝐶 is an aggregate Ob𝑂𝑏 of abstract elements, called theobjectsof C𝐶, and abstract elementsMap, calledmappingsof the category.

Every possible mathematical object or philosophical object?

Well mathematical object constitutes as part of philosophical objects anyways.

What did they have in mind?