home

Exercise 1.2.4.

Produce an infinite collection of sets \(A_1, A_2, A_3, \dots\) with the property that every \(A_i\) has as infinite number of elements, \(A_i \cap A_j = \varnothing\) for all \(i \neq j\), and \(\bigcup_{i=1}^\infty A_i = \mathbb{N}\).

Solution:

arrow_back