Jeffrey L. "Jeff" Smith (January 22, 1939 – July 7, 2004) was the author of several best-selling cookbooks and the host of The Frugal Gourmet, a popular American cooking show which began in Tacoma, Washington in 1973 as Cooking Fish Creatively and later moved to WTTW in Chicago, and Natan Katzman's A La Carte Communications, where it aired nationally on PBS from 1983 to 1997.
In mathematics, especially in set theory, a setA is a subset of a set B, or equivalently B is a superset of A, if A is "contained" inside B, that is, all elements of A are also elements of B. A and B may coincide. The relationship of one set being a subset of another is called inclusion or sometimes containment.
