Chen Chung Chang

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C. C. Chang
Born 1927 (age 89–90)
Fields Mathematics
Institutions University of California, Los Angeles
Doctoral advisor Alfred Tarski
Known for Chang's conjecture

Chen Chung Chang is a mathematician who works in model theory. He obtained his PhD from Berkeley in 1955 on "Cardinal and Ordinal Factorization of Relation Types" under Alfred Tarski. He wrote the standard text Chang & Keisler (1990) on model theory. Chang's conjecture and Chang's model are named after him. He also proved the ordinal partition theorem (expressed in the arrow notation for Ramsey theory) ωω→(ωω,3)2, originally a problem of Erdős and Hajnal. He also introduced MV-algebras as models for Łukasiewicz logic. Chang is emeritus professor at the mathematics department of the University of California, Los Angeles.

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