Putnam on Logical Positivism

Meaning concept and rationality concept are the key concept of logical positivism.Logical positivists propose the veification theory of meaning and try to apply it to the mind philosophy.They also want to theorize the rationality concept.Puonam points out logical positivists misuse the meaning conecpt and do not seriousy study the semantics and ignore the common sense of meaning.The redefinition of science is the root of the mistake of the logical positivism.Logical positivism's method dealing with the rationality concept falls into metaphysical problem and is self-refuting.His analysis is full of deep insight.