Proof

Proof may refer to:

Evidence for the truth of a proposition or statement – see Proof (truth) for an overview

• 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

Specific mathematical forms of proof:

• Formal proof
• Mathematical 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

Other meanings:

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

In entertainment, "Proof" may refer to:

• 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