Paul Ernest is a contributor to the social constructivist philosophy of mathematics.

Paul Ernest is currently emeritus professor of the philosophy of mathematics education at University of Exeter, UK.^[1] He is best known for his work on philosophical aspects of mathematics education, which includes establishing the subfield entitled the philosophy of mathematics education, and for his contributions to developing a social constructivist philosophy of mathematics. He is currently working on questions about ethics in mathematics.

• Ernest, Paul; Social Constructivism as a Philosophy of Mathematics; Albany, New York: State University of New York Press, (1998) [1]
• Ernest, Paul; The Philosophy of Mathematics Education; London: RoutledgeFalmer, (1991) [2]

• Paul Ernest's page at Philosophy of Mathematics Education Journal, the journal that he edits at School of Education, University of Exeter-publications, CV etc.
• Paul Ernest at the Mathematics Genealogy Project
• Paul Ernest's page at Amazon.com