Abstract:
Wittgenstein’s later thought develops a concept of certainty that places logic attached to experience. Thought and action are determined by a logical framework that is built up over time and in interacting with facts. The context of this way of approaching Logic is a practical concept of meaning that leads us to a philosophical investigation about certainty and the concepts of psychology. The grammatical (logical) rules that guide language games constitute the unity of experience and, then all experience has to be understood as an inner aspect to language games, never as a cause of concepts, as from outside. In this article, we examine the conception of logical necessity in this conceptual context and the reasons that sustain the logical character of Wittgenstein’s philosophical reflection, especially in the texts on certainty and the psychology grammar.
Key-Words:
Logic; Certainty; Philosophy of Psychology; Facts; Experience