De Morgan

De Morgan is a surname, and may refer to:

• Augustus De Morgan, mathematician and logician.
  • De Morgan's laws (or De Morgan's theorem), a set of rules from propositional logic.
  • The De Morgan Medal, a mathematics prize awarded by the London Mathematical Society.
• William De Morgan, designer, potter, ceramics-worker (tilist), novelist, and son of Augustus de Morgan
• William's wife, Evelyn De Morgan, an English pre-Raphaelite painter.
• Jacques de Morgan, archaeologist