The realization that all sets of N object have something in common is called
A) algebraic inequalities.
B) numerical equality.
C) subitizing.
D) counting commonalities.

Question

Quizplus · Accepted Answer

This is known as the Pigeonhole Principle, which states that if there are N pigeonholes and N+1 pigeons, then at least one pigeonhole must contain two or more pigeons. This principle can be extended to show that any set of N objects must have something in common, as there are only N possible distinct attributes to assign to the objects.

The Realization That All Sets of N Object Have Something