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The meaning of PROOF is the cogency of evidence that compels acceptance by the mind of a truth or a fact. How to use proof in a sentence.

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PROOF definition: 1. a fact or piece of information that shows that something exists or is true: 2. a logical…. Learn more.

PROOF meaning: 1 : something which shows that something else is true or correct often + of; 2 : an act or process of showing that something is true

Proof theory, a branch of mathematical logic that represents proofs as formal mathematical objects Statistical proof, demonstration of degree of certainty for a hypothesis

evidence, proof - Evidence—from Latin e-, "out," and videre, "to see"— is information that helps form a conclusion; 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. (often used in combination): to proof a house against termites; to shrink-proof a shirt.

Sep 29, 2025 · (countable, logic, mathematics) A sequence of statements consisting of axioms, assumptions, statements already demonstrated in another proof, and statements that logically …