Abstract
This very short chapter gives brief biographies of two people who made seminal contributions to the mathematical theory that underlies this book. George Boole (1815–1864) was a pioneer in the application of mathematical ideas to logic. His work is memorialized by the attachment of his name to Boolean functions and Boolean algebra. Claude Shannon (1916–2001) was a talented electrical engineer and mathematician whose Master's thesis revolutionized the theory of switching circuits by applying Boolean algebra to analyze circuit design. Beginning during World War II, he worked as a researcher at AT&T Bell Labs for over thirty years. Early in his tenure there he wrote two classic papers which initiated the subjects of information theory and modern cryptography, but security concerns kept them from being published until 1948–49.
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