dialetheism

Coined by Graham Priest and Richard Routley, from di- +‎ Ancient Greek ἀλήθεια (alḗtheia, “truth”), in 1981.

• (US) IPA^(key): /ˌdaɪ.əˈlɛθ.i.ɪz.əm/

dialetheism (usually uncountable, plural dialetheisms)

English Wikipedia has an article on:

dialetheism

Wikipedia

1. (logic) The theory that statements can be both true and false at the same time and in the same sense. The opposite of the law of noncontradiction. [from 1981]
   • 2005, Laurence Goldstein, Logic: key concepts in philosophy, page 158:

     [It] is important to point out that endorsing dialetheism is not the same as rejecting logic or rational argumentation.

• dialethism

• law of noncontradiction

• paraconsistent logic

• Priest, Graham. 'Dialetheism', Stanford Encyclopedia of Philosophy. 2008.
• Priest, Graham, Sylvan, Richard, Norman, Jean, and Arruda, Ayda Ignez (eds.). Paraconsistent Logic: Essays on the Inconsistent. München: Philosophia Verlag. 1989: p. xx

• melithaeids