Proof may refer to: Wikipedia does not have an article with this exact name. ... Wiktionary is a Wikimedia Foundation project intended to be a free wiki dictionary (hence: Wiktionary) (including thesaurus and lexicon) in every language. ...
Proof (1991 film), an Australian film by Jocelyn Moorhouse starring Hugo Weaving and Russell Crowe
Proof (2005 film), a film directed by John Madden, based on the David Auburn play
Proof (rapper), the late rapper and member of the group D12, died 11 April, 2006
Proofing, the process by which a yeast-leavened dough rises
Proving, the process used in homeopathy to test the physical effect of a substance on the human body
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In the context of proof theory, where purely formal proofs are considered, such not entirely formal demonstrations in mathematics are often called "social proofs".
The philosophy of mathematics is concerned with the role of language and logic in proofs, and mathematics as a language.
Proof by contradiction (also known as reductio ad absurdum): where it is shown that if some statement were true, a logical contradiction occurs, hence the statement must be false.