liar paradox

noun

1. a logical paradox that results from consideration of statements of the form “This statement is false.” If the statement is true, then it is false, whereas if it is false, then it is true.

liar paradox

noun

1. logic the paradox that this statement is false is true only if it is false and false only if it is true: attributed to Epimenides the Cretan in the form all Cretans are liars

Word History and Origins

Origin of liar paradox¹

First recorded in 1935–40