Inconsistent Triad

An inconsistent triad consists of three propositions of which at most two can be true. For example:

  1. Alice loves me.
  2. If Alice loves me, she would have sent flowers.
  3. Alice hasn't sent flowers.

If one finds oneself believing all three propositions of an inconsistent triad, then (to be rational) one must give up or modify at least one of those beliefs. Maybe Alice doesn't love me, or maybe she wouldn't send flowers to me if she did, or maybe she actually has sent flowers.

Read more about Inconsistent Triad:  The Problem of Evil

Famous quotes containing the word inconsistent:

    Grammar is a tricky, inconsistent thing. Being the backbone of speech and writing, it should, we think, be eminently logical, make perfect sense, like the human skeleton. But, of course, the skeleton is arbitrary, too. Why twelve pairs of ribs rather than eleven or thirteen? Why thirty-two teeth? It has something to do with evolution and functionalism—but only sometimes, not always. So there are aspects of grammar that make good, logical sense, and others that do not.
    John Simon (b. 1925)