# proof

- Informally, a procedure that brings conviction. More formally, a deductively valid argument starting from true premises, that yields the conclusion. Most formally, in proof theory, a proof is a sequence of formulae of which each member is either an axiom or is derived from a set of preceding members by application of a rule of inference, and which terminates with the proposition proved. The final member of such a sequence is a theorem . In 17th- and 18th-century usage ‘proof’ has the same implications of a chain of intuitive ideas as demonstration.

*Philosophy dictionary.
Academic.
2011.*

**Synonyms**:

### Look at other dictionaries:

**proof**— n [alteration of Middle English preove, from Old French preuve, from Late Latin proba, from Latin probare to prove] 1: the effect of evidence sufficient to persuade a reasonable person that a particular fact exists see also evidence 2: the… … Law dictionary**Proof**— • The establishment of a disputed or controverted matter by lawful means or arguments. Catholic Encyclopedia. Kevin Knight. 2006. Proof Proof … Catholic encyclopedia**Proof**— Proof, a. [1913 Webster] 1. Used in proving or testing; as, a proof load, or proof charge. [1913 Webster] 2. Firm or successful in resisting; as, proof against harm; waterproof; bombproof. [1913 Webster] I . . . have found thee Proof against all… … The Collaborative International Dictionary of English**Proof**— may refer to: * A rigorous, compelling argument ** Formal proof ** Mathematical proof ** Proof theory, a branch of mathematical logic that represents proofs as formal mathematical objects ** Logical argument ** Evidence (law), tested evidence or… … Wikipedia**proof´er**— proof «proof», noun, adjective, verb. –n. 1. a way or means of showing beyond doubt the truth of something: »Is what you say a guess, or have you proof? SYNONYM(S): See syn. under evidence. (Cf. ↑evidence) 2. the establishment of the truth of… … Useful english dictionary**Proof**— Proof, n. [OF. prove, proeve, F. preuve, fr. L. proba, fr. probare to prove. See {Prove}.] [1913 Webster] 1. Any effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial. [1913 Webster]… … The Collaborative International Dictionary of English**Proof**— в 2005 году Основная информация … Википедия**proof**— [pro͞of] n. [ME profe < OFr prueve < LL proba < L probare: see PROBE] 1. the act or process of proving; a testing or trying of something 2. anything serving or tending to establish the truth of something, or to convince one of its truth; … English World dictionary**proof**— ► NOUN 1) evidence establishing a fact or the truth of a statement. 2) the proving of the truth of a statement. 3) a series of stages in the resolution of a mathematical or philosophical problem. 3) archaic a test or trial. 4) Printing a trial… … English terms dictionary**Proof**— ist ein US amerikanischer Rapper (1973 2006), siehe Proof (Rapper) in der Drucktechnik die Bezeichnung für eine Vorschau auf das spätere Druckergebnis, siehe Proof (Druck) der Original Titel eines Films von John Madden aus dem Jahr 2005, siehe… … Deutsch Wikipedia**proof**— [n1] evidence, authentication affidavit, argument, attestation, averment, case, certification, chapter and verse*, clincher*, clue, confirmation, corroboration, credentials, criterion, cue*, data, demonstration, deposition, documents,… … New thesaurus