ABSTRACT
This chapter presents some of the main points in the intentionalist mind-theory of Franz Brentano, stressing those points on which his views had an indirect influence on Wittgenstein, mainly through Edmund Russell and others at Cambridge, and also those points which help in the criticism of Wittgenstein's opinions. It considers the contributions of Gottlob Frege to the philosophy of logic, language and mathematics, contributions which were given an extremely high rating by Wittgenstein himself, and which are similarly rated by many of our contemporaries, but which, to the present writer, seem narrow in philosophical scope. One of the most significant later doctrines of Husserl is his importation of the basic logical constants into the phenomenology of what he calls the life-world, the world as it appears to the non-analytic, and even verbally inarticulate, conscious person.
