ABSTRACT
Consider the following problem: Is the Pope a bachelor? Two approaches suggest themselves to solve this bachelor problem, each producing a different answer. One possibility is an intuitive solution: Our understanding of bachelor reflects similarity relations among people who are known to be bachelors. According to this intuitive approach, the Pope would not be seen as a bachelor. Alternatively, the concept of bachelor can be represented as a person who satisfies the rule, “unmarried, adult, male.” Under this formal definition, the Pope, contrary to intuition, indeed would be a bachelor.
