ABSTRACT
Throughout the previous chapters we have attempted to analyse the foundations on which Piaget has erected a complete philosophy intended to cover the human individual in himself, the individual in society and the human phenomenon as a whole in relation to evolution. 102 These foundations rest on two 'self-evident truths':
that the human condition is reducible to a logico-mathematical form and this form is the Actuality of human psychology;
that Actuality itself is equally reducible to logico-mathematical forms, allowing the unmediated transition from the activity of the subject in the world to the mental structures of that subject's psychological make-up.
