Proof

Proof may refer to:

• Proof (truth), evidence for the truth of a proposition or statement:
  • Argument
  • Evidence, information which tends to determine or demonstrate the truth of a proposition
  • Evidence (law), tested evidence or a legal proof
  • Justification, in epistemology, a reason for or explanation of a proposition or belief
  • Mathematical proof:
    • Formal proof
    • Proof complexity
    • Proof procedure
    • Proof theory, a branch of mathematical logic that represents proofs as formal mathematical objects
    • Provability logic
    • A recursively enumerable set, also known as a "provable set"

• Various kinds of testing, checking, or measuring:
  • Alcoholic proof, a measure of an alcoholic drink's strength
  • Artist's proof, a single print taken during the printmaking process
  • Galley proof, a preliminary version of a publication
  • Prepress proof, a facsimile of press artwork for job verification
  • Proof coinage, a coin made as an example of a particular strike
  • Proof of concept
  • Proofreading, reviewing a manuscript or artwork for errors or improvements
  • Proof test, for a firearm

• Resistance to some substance or agent:
  • Bulletproofing, provision for resisting fired bullets
  • Waterproofing, provision for resisting water

• Homeopathic proving, a homeopathic procedure
• Proofing (baking technique), the process by which a yeast-leavened dough rises, also called "proving"

• In entertainment:
  • Proof (TV series) (2004 and 2005), an Irish TV drama/thriller, co-produced by RTÉ and TV 2 (Denmark)
  • 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 1942 hard SF short story by Hal Clement
  • "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 song by Happy Rhodes from her 1998 album Many Worlds Are Born Tonight
  • "Proof", a 2004 song by J-pop group angela
  • "Proof", a 2007 song by Japanese artist Mell
  • Proof (rapper) (1973–2006), American rapper and member of D12
  • Proof (comics), a comic series from Image Comics