Proof

Word PROOF
Character 5
Hyphenation proof
Pronunciations /pɹʉːf/

Definitions and meanings of "Proof"

What do we mean by proof?

The evidence or argument that compels the mind to accept an assertion as true. noun

The validation of a proposition by application of specified rules, as of induction or deduction, to assumptions, axioms, and sequentially derived conclusions. noun

A statement or argument used in such a validation. noun

Convincing or persuasive demonstration. noun

The state of being convinced or persuaded by consideration of evidence. noun

Determination of the quality of something by testing; trial. noun

The establishment of the truth or falsity of an allegation by evidence. noun

The evidence offered in support of or in contravention of an allegation. noun

The alcoholic strength of a liquor, expressed by a number that is twice the percentage by volume of alcohol present. noun

A trial sheet of printed material that is made to be checked and corrected. noun

A trial impression of a plate, stone, or block taken at any of various stages in engraving. noun

A trial photographic print. noun

Any of a limited number of newly minted coins or medals struck as specimens and for collectors from a new die on a polished planchet. noun

Proven impenetrability. noun

Fully or successfully resistant; impervious. Often used in combination. adjective

An effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial.

The degree of evidence which convinces the mind of any truth or fact, and produces belief; a test by facts or arguments which induce, or tend to induce, certainty of the judgment; conclusive evidence; demonstration.

The quality or state of having been proved or tried; firmness or hardness which resists impression, or does not yield to force; impenetrability of physical bodies.

Experience of something.

Firmness of mind; stability not to be shaken.

A proof sheet; a trial impression, as from type, taken for correction or examination.

A sequence of statements consisting of axioms, assumptions, statements already demonstrated in another proof, and statements that logically follow from previous statements in the sequence, and which concludes with a statement that is the object of the proof.

A process for testing the accuracy of an operation performed. Compare prove, transitive verb, 5.

Armour of excellent or tried quality, and deemed impenetrable; properly, armour of proof.

A measure of the alcohol content of liquor. Originally, in Britain, 100 proof was defined as 57.1% by volume (no longer used). In the US, 100 proof means that the alcohol content is 50% of the total volume of the liquid; thus, absolute alcohol would be 200 proof.

Synonyms and Antonyms for Proof

The word "proof" in example sentences

That is so funny about your selecting the squirrel proof feeder, and I can agree, some are more *proof* than others! ❋ Unknown (2009)

However, when it comes to attempting to understand the deep structure of classical proof systems (and in particular, when two derivations that differ in some superficial syntactic way are really different ways to represent the one underlying ˜proof™) it is enlightening to think of classical logic as formed by a basic substructural logic, in which extra structural rules are imposed as additions. ❋ Restall, Greg (2008)

‡ An apparently intact hymen is valued in some cultures as proof of virginity in a bride; this “proof, ” however, is not accurate. ❋ Unknown (2002)

A proof taken of the whole galley at once is called a _galley proof_. ❋ Various (N/A)

Here, then, we are told that proof of the occasional transmission of mutilations would be sufficient to establish the fact, but on p. 267 we find that no single fact is known which really proves that acquired characters can be transmitted, "_for the ascertained facts which seem to point to the transmission of artificially produced diseases cannot be considered as proof_" [Italics mine.] ❋ Samuel Butler (1868)

But I say, by authority of the Master, that _the highest proof, the absolute proof, the perfect proof_, of the FACTS as to _who God is, and what he does_, and the ❋ Unknown (1839)

The strength of spirit stronger than _proof_ or _over proof_, as it is termed by the revenue officers, is indicated by the bulk of water necessary to reduce a given volume of it, to the legal standard spirit, denominated _proof_ -- namely; if one gallon of water be required to bring twenty gallons of brandy, rum, or any other spirit, to proof, that spirit is said to be _1 to 20 over proof_. ❋ Friedrich Christian Accum (1803)

No experimental proof has hitherto been obtained that stimulation of the cerebral organs lying above the vaso-motor centre, and which include those possessing the function of thought, ever paralyzes this centre; but, as it is only by such paralysis that cerebral conditions can induce dilatation of blood-vessels, it must follow that no _experimental proof_ at present exists that stimulation of the brain ever does cause such dilatation -- that is, ever does become a cause of hæmorrhage. ❋ Anna Callender Brackett (N/A)

The proof of this lies in the words _ex ou_ just below; not _ex ôn_ (_ouranôn_) but _ex ou_ (_politeumatos_): I can find _no proof_ of the assertion (Moulton's ❋ Unknown (1880)

I. i.217 (15,1) in strong proof] In chastity _of proof_, as we say in armour _of proof_. ❋ Samuel Johnson (1746)

The term proof is sometimes used to designate the alcoholic content of distilled liquors. ❋ Harold McGee (2004)

The term proof comes from a 17th-century test for proving the quality of spirits that involved moistening gunpowder with the spirits, and then putting a flame to it. ❋ Harold McGee (2004)

But if the term proof or demonstration may be, as it often is, applied to a posteriori or inductive inference, by means of which knowledge that is not innate or intuitive is acquired by the exercise of reason, then it cannot fairly be denied that Catholic teaching virtually asserts that God's existence can be proved. ❋ 1840-1916 (1913)

The fact that no one has set off a dirty bomb is what I call proof of Kelly's success. ❋ Len Levitt (2011)

A Republican National Committee news release cited the company's investment in China as part of what it called proof that recovery funds are flowing to a major economic competitor. ❋ Unknown (2011)

You are a liar and a moron and the proof is all over this thread ❋ Unknown (2010)

Cross Reference for Proof

What does proof mean?

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