From: utzoo!decvax!harpo!eagle!mhtsa!alice!rabbit!ark
Newsgroups: net.jokes
Title: mathematician, physicist, engineer
Article-I.D.: rabbit.1068
Posted: Wed Jan 19 11:05:11 1983
Received: Fri Jan 21 06:49:43 1983

A mathematician, a physicist, and an engineer were on a train
riding through Wisconsin when they saw a white cow.  Said the
engineer:

	"I didn't know there were white cows in Wisconsin."

The physicist said:

	"You don't.  You only know that there is **a** white cow in Wisconsin."

The mathematician said:

	"No, all you know is that there is at least one cow
	in Wisconsin that is white on at least one side."