let me put in my two cents

Good Thing We Know Nothing is Less than 99 Cents

Good Thing We Know Nothing is Less than 99 Cents

A lower price bound is always interesting (taken on my commute) UPDATE: I got this email from a friend:  So since the store exists we assume that the set of items in the store with prices is non-empty. The sign provides a lower bound. Thus in the real numbers we are guaranteed to have an infimum, but […]