Logic

John-a-Nokes was driving his Cart toward Croydon, and by the Way fell asleep therein: Mean time a Thief came by and stole his two Horses, and went quite away with them; In the End he awaking, and missing them, said, Either I am John a Nokes, or I am not John a Nokes. If I am John a Nokes, then have I lost two Horses; and if I be not John a Nokes, then have I found a Cart.

The Jester’s Magazine, February 1766