Intuitionism is a philosophy of mathematics which regards the objects of mathematical discourse to be mental constructions based upon intuitively self-evident ideas. Thus, for the intuitionist, mathematical "objects" are purely mental and have no...

. Any doctrine emphasizing the role of INTUITION. Mathematical intuitionism, associated especially with L.E.J.Brouwer (1881–1966) and A.Heyting (1898–1980), confines the subject-matter of mathematics to what is given in intuition. In...

The Proliferation of Nonclassical Logics The twentieth century, and especially its second half, was marked by a fairly spectacular proliferation of what are sometimes called nonclassical logics. To understand this, one needs to see the matter in its...

Intuitionism and Intuitionistic Logic Logic, in the modern preponderantly mathematical sense, deals with concepts like truth and consequence. The main task of logic is to discover the properties of these concepts. Ever since Aristotle it had been...

In the philosophy of mathematics, intuitionism, or neointuitionism (opposed to preintuitionism), is an approach to mathematics as the constructive mental activity of humans. That is, mathematics does not consist of analytic activities wherein deep...

[Review Essay: Philip Stratton-Lake (ed.), Ethical Intuitionism: Reevaluations (Oxford: Oxford University Press, 2002), viii + 305 pp.] We ordinarily think that moral knowledge is possible. We make claims about the ethical character of certain actions or people that we encounter or think...

FALKENSTEIN, Lorne. Kant's Intuitionism: A Commentary on the Transcendental Aesthetic. Toronto: University of Toronto Press, 1995. xxiii + 465 pp. Cloth, $70.00--In this close reading of the Transcendental Aesthetic, the author argues that an important aspect of the Aesthetic has been neglected in...