Maths, Mathematics, Discrete Mathematics, Discrete Maths, Sets.
= {1, 3, 3, 4}. Are these sets equal (A = B)? Let's apply the axiom to these sets to find out! The number 1 is present in both sets. The same goes for number 4. What about 3? The number three is present in both sets, but B has a duplicate. Sets do not allow duplicates, and therefore, we only count