There's the related concept of 'sortals', the preconditions for countability. From the Stanford encyclopedia of philosophy[1]: The three main ideas are that a

There's the related concept of 'sortals', the preconditions for countability. From the Stanford encyclopedia of philosophy[1]: The three main ideas are that a sortal tells us what the essence of a thing is tells us how to count things of that kind, which requires knowing which things are different and which are the same tells us when something continues to exist, and when it goes out of existence [1] https://plato.stanford.edu/entries/sortals/ https://plato.stanford.edu/entries/sortals/