Paul ErnestPaul Ernest is a contributor to the social constructivist philosophy of mathematics.LifePaul Ernest is currently emeritus professor of the philosophy of mathematics education at University of Exeter, UK. 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.