Proof may refer to: A rigorous, compelling argument, including:
Mathematical proofProof theory, a branch of mathematical logic that represents proofs as formal mathematical objects
Logical argumentEvidence (law), tested evidence or a legal proof
Proof (alcohol), measure of an alcoholic drink's strength
Proofing (baking technique), the process by which a yeast-leavened dough rises, also called "proving"
ProofreadingArtist's proof, a single print taken during the printmaking process
Proof coinage, a coin made as an example of a particular strike
Proof test, for a firearm
Galley proof, a preliminary version of a publication
Homeopathic proving, testing a substance's effect on the body
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