QED
Appearance
QED may refer to:
Mathematics, science, and technology
- Q.E.D. (quod erat demonstrandum), used at the end of a mathematical proof
- Quantum electrodynamics, a field in particle physics
- QED (text editor), a 1960s line-oriented editor
- QED manifesto and project, a database of mathematical knowledge
- QEMU Enhanced Disk, a deprecated disk image format for machine emulation and virtualization
- Quantum Effect Devices, a microprocessor design company
Television
- KQED (TV), public television station in San Francisco, California
- Q.E.D. (U.S. TV series)
- Q.E.D. (UK TV series)
- WQED (TV), public television station in Pittsburgh, Pennsylvania
Music
- QED (band), a 1980s Australian band
- Q.E.D. (Terje Rypdal album), 1993
- Q.E.D. (Jim Allchin album)
- QED Records or Emanem Records
Other uses
- Granville Gee Bee R-6, named "Q.E.D.", a 1930s racing monoplane
- QED: The Strange Theory of Light and Matter, a 1985 physics book by Richard Feynman
- Quod Erat Demonstrandum, a 1903 novel by Gertrude Stein
- Q.E.D. (novel), a 1930 mystery novel by Lynn Brock
- Quod Erat Demonstrandum (film), a 2013 Romanian drama film
- QED (play), a 2001 play by Peter Parnell about Richard Feynman
- Q.E.D. (manga), a 1997 manga by Motohiro Katou
- QED International, a film company
- QED: Question, Explore, Discover, annual skeptical conference held in Manchester, UK
- Quami Ekta Dal, a regional political party in India
- Quiet Electric Drive, a US Navy program to develop technologies for silent maritime propulsion