# Proof

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

## 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
* Probate, the judicial process whereby a will is "proved" in a court of law and accepted as valid

## 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

## Arts and entertainment and media
### 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

### Music
#### 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