falsum

== English == === Etymology === Borrowed from Latin falsum. === Noun === falsum (uncountable) (logic) An arbitrary contradiction, denoted ⊥. == Latin == === Etymology === From falsus, perfect passive participle of fallō (“deceive, trick”). === Pronunciation === (Classical Latin) IPA(key): [ˈfaɫ.sũː] (modern Italianate Ecclesiastical) IPA(key): [ˈfal.sum] === Noun === falsum n (genitive falsī); second declension An untruth, falsehood, fraud, deceit, lie; forgery. Ex falso quodlibet.(WP) From falsehood anything [follows]: ⊥ → Q {\displaystyle \bot \rightarrow Q} . ==== Declension ==== Second-declension noun (neuter). ==== Related terms ==== === References === “falsum”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers “falsum”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette. Carl Meißner; Henry William Auden (1894), Latin Phrase-Book‎[1], London: Macmillan and Co. “falsum”, in Harry Thurston Peck, editor (1898), Harper’s Dictionary of Classical Antiquities, New York: Harper & Brothers “falsum”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin