The Liar Paradox, Diagrammed
A flowchart of the liar paradox: assuming the sentence true or false each leads to a contradiction.
Use this cartoon
Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2016-01-01-the-liar-paradox-diagrammed/ (CC BY-NC 4.0)Transcript
"This sentence is false." → if true → accept what it says → so it's false! / → if false → reject what it says → so it's true! → Contradiction!