One night in July, 1964, the logician Lotfi Zadeh found himself alone in his parents’ New York apartment, his dinner plans cancelled. At the time, Zadeh later wrote, he was doing “a lot of thinking ...

Algebraic structures provide formal frameworks characterised by sets equipped with operations and relations that satisfy specified axioms. Fuzzy logic systems extend classical two-valued logic by ...

Then in the early 20th century, Jan Lukasiewicz proposed a three-valued logic (true, possible, false), which never gained wide acceptance. In 1965, Lotfi A. Zadeh of the University of California at ...