S.Haack has defended the idea that in fuzzy logic it cannot be affirmed that the true values of a statement are themselves blurry. This article analyzes Haack position in the light of some current approaches of classic philosophy of logic, and from the cognitive point of view of philosophy of logic, especially from the theory of concepts. Under the said approaches, the thesis on non-gradation of truth appears significantly weakened.
Ramírez F., A. (2015). Fuzzy logic, truth and cognition. Revista De Filosofía, 70, 133–147. Retrieved from https://revfono.uchile.cl/index.php/RDF/article/view/35935
