Dictionary » P » Proof



1. Any effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial. For whatsoever mother wit or art Could work, he put in proof. (Spenser) You shall have many proofs to show your skill. (Ford) Formerly, a very rude mode of ascertaining the strength of spirits was practiced, called the proof. (ure)

2. That degree of evidence which convinces the mind of any truth or fact, and produces belief; a test by facts or arguments that induce, or tend to induce, certainty of the judgment; conclusive evidence; demonstration. I'll have some proof. (Shak) It is no proof of a man's understanding to be able to confirm whatever he pleases. (Emerson)

Properly speaking, proof is the effect or result of evidence, evidence is the medium of proof. Cf. Demonstration.

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

4. Firmness of mind; stability not to be shaken.

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

6. (Science: mathematics) A process for testing the accuracy of an operation performed. Cf. Prove.

7. Armor of excellent or tried qualit 6f1 y, and deemed impenetrable; properly, armor of proof. Artist's proof, a very early proof impression of an engraving, or the like; often distinguished by the artist's signature. Proof reader, one who reads, and marks correction in, proofs. See def. 5, above.

Synonym: Testimony, evidence, reason, argument, trial, demonstration. See Testimony.

Origin: OF. Prove, proeve, F. Preuve, fr. L. Proba, fr. Probare to prove. See Prove.

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Re: Any ideas for vaccine development or anti-viral drugs???

... the viral proteins (VPs) VP24, VP35, and RNA polymerase L protected rodents in both pre- and post-exposure therapeutic regimens. In a prophylactic proof-of-principal trial, the PMOs also protected 75% of rhesus macaques from lethal EBOV infection. The work described here may contribute to development ...

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by jonmoulton
Mon Sep 15, 2014 3:04 pm
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Topic: Any ideas for vaccine development or anti-viral drugs???
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Trying to prove height increase...need help

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by MiniGolfer
Thu Jul 24, 2014 9:09 pm
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Re: Re:

... American IQ is actually significantly higher than white American IQ. So I don't know why you're pointing to the IQ average of blacks in America as proof of your pseudoscience. By every measure, black American IQ debunks your entire worldview. Good point that I would like to add to! The average ...

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by wildfunguy
Thu Mar 13, 2014 4:13 am
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Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
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Humans Natural Habitat/Optimal Environment

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by Babybel56
Tue Mar 04, 2014 6:04 am
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Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... for the fact that any human, regardless of race or ethnicity, can adapt and assimilate any other human culture? Just look at the United States for proof. How do you account for the fact that all "races" of humans are sexually compatible and able to produce viable offspring? You see, these ...

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by Seth90210
Sun Feb 16, 2014 9:35 pm
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Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
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