Proof

Proof most often refers to:

Proof may also refer to:
 * Proof (truth), argument or sufficient evidence for the truth of a proposition
 * Alcohol proof, a measure of an alcoholic drink's strength

Mathematics and formal logic

 * Formal proof, a construct in proof theory
 * Mathematical proof, a convincing demonstration that some mathematical statement is necessarily true
 * Proof complexity, computational resources required to prove statements
 * Proof procedure, method for producing proofs in proof theory
 * Proof theory, a branch of mathematical logic that represents proofs as formal mathematical objects
 * Statistical proof, demonstration of degree of certainty for a hypothesis

Law and philosophy

 * Evidence, information which tends to determine or demonstrate the truth of a proposition
 * Evidence (law), tested evidence or a legal proof
 * Legal burden of proof, duty to establish the truth of facts in a trial
 * Philosophic burden of proof, obligation on a party in a dispute to provide sufficient warrant for their position

Manufacturing and printing

 * 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, coins once made as a test, but now specially struck for collectors
 * Proof of concept, demonstration that a concept has practical potential
 * Proof test, stress test of structures such as vessels and weapons
 * Proofreading, reviewing a manuscript for errors or improvements

People

 * Proof (rapper) (1973–2006), American rapper and member of D12
 * Sam Proof (born 1974), U.S. actor

Places

 * Proof School, San Francisco, California, USA; a secondary school

Film, television, and theatre

 * Proof (play), a 2000 play by David Auburn

Film

 * Proof, a 1980 student film by Kevin Reynolds, expanded to Fandango
 * Proof (1991 film), an Australian film by Jocelyn Moorhouse
 * Proof (2005 film), a film by John Madden, based on the 2000 play by David Auburn

Television

 * Proof (2004 TV series), an Irish drama/thriller
 * Proof (2015 TV series), an American medical/supernatural drama
 * "Proof" (Devious Maids), a television episode

Literature

 * Proof (comics), a comic series from Image Comics
 * "Proof", a 1942 science fiction short story by Hal Clement
 * PROOF!, a magazine published by Lynne McTaggart
 * Proof, print magazine of online platform The Justice Gap

Albums and records

 * Proof, an album by Emily Elbert, 2010
 * Proof, an EP by Colour Coding, 2012
 * Proof (album), an anthology album by BTS, 2022

Songs and singles

 * "Proof" (I Am Kloot song), 2003
 * "Proof" (Paul Simon song), 1991
 * "Proof"/"No Vain", a single by Mell, 2007
 * "Proof", a song by Angela, 2004
 * "Proof", a song by Chris Brown from Royalty, 2015
 * "Proof", a song by Coldplay, a B-side of the single "Speed of Sound", 2005
 * "Proof", a song by Happy Rhodes from Many Worlds Are Born Tonight, 1998
 * "Proof", a song by Paramore from Paramore, 2013