In the Origin, Darwin forwards two incompatible lines of attack on special creationism. First, he argues that imperfect or functionless traits are evidence against design. Second, he argues that since special creationism can be made compatible with any observation, it is unscientific and explanatorily vacuous. In later works, Darwin shifts to an argument that he finds much more persuasive and which would undermine theistic evolutionism as well. He argues that variation is random with respect to selection and that this demonstrates (...) that there is no design in the biological world. I examine why Darwin found the argument from independence of variation and selection more compelling than the argument from imperfection. I argue that Darwin utilized general principles of causal inference, akin to those used in modern causal modeling, to rule out any unified cause behind the evolutionary process. (shrink)

This book brings together philosophers, mathematicians and logicians to penetrate important problems in the philosophy and foundations of mathematics. In philosophy, one has been concerned with the opposition between constructivism and classical mathematics and the different ontological and epistemological views that are reflected in this opposition. The dominant foundational framework for current mathematics is classical logic and set theory with the axiom of choice. This framework is, however, laden with philosophical difficulties. One important alternative foundational programme that is actively pursued (...) today is predicativistic constructivism based on Martin-Löf type theory. Associated philosophical foundations are meaning theories in the tradition of Wittgenstein, Dummett, Prawitz and Martin-Löf. What is the relation between proof-theoretical semantics in the tradition of Gentzen, Prawitz, and Martin-Löf and Wittgensteinian or other accounts of meaning-as-use? What can proof-theoretical analyses tell us about the scope and limits of constructive and predicative mathematics? (shrink)

In The Influence of Darwin on Philosophy (1910), Dewey characterizes Hume as an orthodox empiricist wedded to a static and unchanging view of mental life. The lead essay argues that Darwinism is a cure for the errors of traditional empiricism. This paper demonstrates that Hume is a precursor to Darwin, and thus to Dewey, by reviewing the historical case that Hume directly influenced Darwin’s theory of evolution. Using Dewey’s discussion of the design versus chance problem, the paper throws light on (...) the origins of his misinterpretation of Hume, and suggests that the two thinkers are closer than Dewey’s criticism would allow. (shrink)

The question of our place in nature has long been with us. One answer lies in comparing humans with other animals , thereby highlighting the uniquely human. To this end, I examine the distinction between humans and brutes as delineated by Descartes, Kant, and the Chicago pragmatist George Mead. This selection not merely assures a wide-spectrum of opinion still alive today, it marks a general historical shift from the metaphysical dualism of Descartes' mechanical world and spiritual self, to the epistemic (...) dualism of Kant and his double sense of self, finally to Mead's naturalistic monism, in which consciousness emerges naturally from the non-conscious. Apart from illuminating issues current in the animal-rights literature, examining this single topic casts a new light on these figures, especially Kant and Mead . Descartes' dualism is understandable simply given his scientific commitments, and the chasm he found in the human/brute gap was as much a result of this scientific motivation as any religious or moral one. For Kant, brutes lack the power to judge, understand, or reason. But more importantly, they lack autonomy and are therefore without moral worth. The unbridgeable chasm, metaphysical for Descartes, became for Kant primarily moral. Brutes do have representations and desires, however, and, by virtue of being alive, an immaterial principle; Kant consequently rejected Descartes' animal-machine hypothesis. Darwin's account of the human/brute gap and Mead's Darwinistic psychology are discussed. Selfhood and consciousness are unique to humans, although brutes are conscious in another sense. Mead's different uses of 'consciousness' are separated in order to clarify this difference as well as the role of language in the emergence of mind. Mead argued that humans perceive social objects prior to physical objects while brutes perceive none of these, lacking the capacities of universalization and object-manipulation. Like Descartes and Kant, Mead minimized brute experience, thereby maintaining a wide gulf between humans and brutes despite his Darwinian naturalism. (shrink)