Proof

Proof may refer to:

• A rigorous, compelling argument, including:
  • Mathematical proof
  • Proof theory, a branch of mathematical logic that represents proofs as formal mathematical objects
  • Logical argument
  • Evidence (law), tested evidence or a legal proof

• Various kinds of testing or checking
  • Proofing (baking technique), the process by which a yeast-leavened dough rises, also called "proving"
  • Proofreading
  • Artist's proof, a single print taken during the printmaking process
  • Proof coinage, a coin made as an example of a particular strike
  • Proof test, for a firearm
  • Galley proof, a preliminary version of a publication
  • Homeopathic proving, testing a substance's effect on the body

• Proof (alcohol), measure of an alcoholic drink's strength

In entertainment:

• Proof (1991 film), an Australian film by Jocelyn Moorhouse
• Proof (play), a play by David Auburn
• Proof (2005 film), a film directed by John Madden, based on the play
• "Proof", a B-side by the band Coldplay, off their single Speed of Sound
• "Proof", a song by Paul Simon from his 1990 album The Rhythm of the Saints
• "Proof", a 2004 song by J-pop group angela
• "Proof", a 2007 song by japanese artist Mell
• Proof (rapper), deceased member of D12
• Proof (comics), a comic series from Image Comics