How to use proof in a sentence. A fact or piece of information that shows that something exists or is true Proof is factual information that verifies a conclusion. Proof is a fact, argument, or piece of evidence which shows that something is definitely true or definitely exists This is not necessarily proof that he is wrong. To treat or coat for the purpose of rendering resistant to deterioration, damage, etc
To proof a house against termites Proof theory, a branch of mathematical logic that represents proofs as formal mathematical objects statistical proof, demonstration of degree of certainty for a hypothesis (countable, logic, mathematics) 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. Evidence sufficient to establish a thing as true, or to produce belief in its truth. See examples of proof used in a sentence. In the majority of cases, prove is a verb, while proof is a noun
