(of a pair of statements) unable both to be true or both to be false under the same circumstances
Compare contrary (sense 5), subcontrary (sense 1)
nounWord forms: plural-ries
4. logic
a statement that cannot be true when a given statement is true, or false when it isfalse
Derived forms
contradictorily (ˌcontraˈdictorily)
adverb
contradictoriness (ˌcontraˈdictoriness)
noun
Examples of 'contradictories' in a sentence
contradictories
Contradictories cannot both be true, nor can they both be false.
William Minto Logic: Inductive and Deductive (1893). Retrieved in 2019 from Project Gutenberg (https://www.gutenberg.org/ebooks/)
The law of excluded middle holds only with regard to contradictories.
St. George Stock Deductive Logic (1888). Retrieved in 2019 from Project Gutenberg (https://www.gutenberg.org/ebooks/)
Most masks were constant (like age, name and place of residence), and just a few changed or were obviously contradictories.
Carlos ARCILA CALDERÓN 2014, 'Análisis comparativo de la Presentación personal virtual en diferentes espacios deinteracción.', Fonseca: Journal of Communicationhttp://revistas.usal.es/index.php/2172-9077/article/view/11907. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
For contradictories are positive and negative in essence and, when least ambiguously stated, also in form.
Carveth Read Logic: Deductive and Inductive (1914). Retrieved in 2019 from Project Gutenberg (https://www.gutenberg.org/ebooks/)