conditional proof in English dictionary conditional proof Meanings and definitions of "conditional proof" noun (logic) A proof showing that if an assumption A is true then a consequent statement or conclusion B must also be true, i.e. B is true on the condition that A is true. more Grammar and declension of conditional proof conditional proof (plural conditional proofs) more Sample sentences with "conditional proof" Declension Stem Match words all exact any Try again Available translations Finnish French Authors