John Woods’ Errors of Reasoning (EoR) flies in the face of logical orthodoxy in an astonishing number of ways. Its 550 pages make numerous claims on a great many subjects. Due to space limitations, this review will focus only on some of them. I nevertheless hope to give the general flavour of this thought-provoking book. The official core topic of EoR is the one of logical fallacies. And the co...

And you claim to have discovered this. .. from observations on sick people? This paper argues that new light may be shed on mathematical reasoning in its non-pathological forms by careful observation of its patholo-gies. The first section explores the application to mathematics of recent work on fallacy theory, specifically the concept of an 'argumentation scheme': a characteristic pattern unde...