Revisiting the Aerts-Broekaert-Smets quantum model of the liar paradox
This paper provides a pedagogical reconstruction of the Aerts-Broekaert-Smets quantum model of the liar paradox using Dirac notation to clarify that while the unitary dynamics can be represented in a four-dimensional truth-only space, the enlargement of the state space is necessary to account for measurement structures and cognitive memory in revision processes.