LOGIC, n. The art of thinking and reasoning in strict accordance with
the limitations and incapacities of the human misunderstanding. The
basic of logic is the syllogism, consisting of a major and a minor
premise and a conclusion -- thus:
_Major Premise_: Sixty men can do a piece of work sixty times as
quickly as one man.
_Minor Premise_: One man can dig a posthole in sixty seconds;
therefore --
_Conclusion_: Sixty men can dig a posthole in one second.
This may be called the syllogism arithmetical, in which, by
combining logic and mathematics, we obtain a double certainty and are
twice blessed.
-- Ambrose Bierce, "The Devil's Dictionary"
