practice. The conviction or persuasion of the mind of a judge or jury, by the exhibition of evidence, of the reality of a fact alleged: as, to prove, is to determine or persuade that a thing does or does not exist. Proof is the perfection of evidence, for without evidence there is no proof, although, there may be evidence which does not amount to proof: for example, a man is found murdered at a spot where another had been seen walking but a short time before, this fact would be evidence to show that the latter was the murderer, but, standing alone, would be very far from proof of it. 2. Ayliffe defines judicial proof to be a clear and evident declaration or demonstration, of a matter which was before doubtful, conveyed in a judicial manner by fit and proper arguments, and likewise by all other legal methods; first, by proper arguments, such as conjectures, presumptions, indicia, and other adminicular ways and means; and, secondly, by legal method, or methods according to law, such as witnesses, public instruments, end the like.
Law Dictionary – Alternative Legal Definition
Proof, in civil process, is a sufficient reason for the truth of a juridical proposition by which a party seeks either to maintain his own claim or to defeat the claim of another. Whart. Ev.