Alfred Horn

Alfred Horn (February 17, 1918  April 16, 2001) was an American mathematician notable for his work in lattice theory and universal algebra. His 1951 paper "On sentences which are true of direct unions of algebras" described Horn clauses and Horn sentences, which later would form the foundation of logic programming.

Alfred Horn
Alfred Horn about 1973
Born(1918-02-17)February 17, 1918
Lower East Side, Manhattan, U.S.
DiedApril 16, 2001(2001-04-16) (aged 83)
Pacific Palisades, Los Angeles, U.S.
Known forHorn clause
Academic background
EducationCity College of New York (BS), New York University (MS), University of California, Berkeley (PhD)
ThesisOn sentences which are true of direct unions of algebras (1951 (1951))
Academic work
DisciplineMathematician, Logician
Main interestsLattice theory, Universal algebra
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