The issue of what consequences to draw from the existence of non-classical logical systems has been the subject of an interesting debate across a diversity of fields. In this paper the matter of alternative logics is considered with reference to a specific belief system and its propositions :the Azande are said to maintain beliefs about witchcraft which, when expressed propositionally, appear to be inconsistent. When the Azande have been presented with such inconsistencies, they either fail to see them as such (...) or else accept them as non-problematical. Is our knowledge of logical truths a relative and culturally determined phenomenon, or is there some (transcendent) criterion that allows us to adjudicate between alternative logical systems? The authors propose an approach for resolving disputes about the status of Azande reasoning which assumes a paraconsistent framework, thus providing a new perspective on this debate. (shrink)

, David Bloor suggests that logical reasoning is radically relativistic in the sense that there are incompatible ways of reasoning logically, and no culturally transcendent rules of correct logical inference exist which could allow for adjudication of these different ways of reasoning. Bloor cites an example of reasoning used by the Azande as an illustration of such logical relativism. A close analysis of this reasoning reveals that the Azande's logic is in fact impeccably Aristotelian. I argue that the conclusions Bloor (...) can legitimately draw from his case study are not controversial and do nothing to make plausible the thesis of logical relativism. (shrink)

The thirty-five chapters in this book describe various judgmental heuristics and the biases they produce, not only in laboratory experiments but in important...

Witchcraft, Oracles, and Magic among the Azande, first published in 1977, was based on anthropological reseaches carried out in the Southern Sudan during the late 1920s. For a decade of so, the book had little discernable impact; but from the early 1950s to present day its influence has grown incalculably, so that it is now difficult even to discuss beliefs about witchcraft or sorcery without reference to it. This abridgement of E.E. Evans-Pritchard's acknowledged masterpiece is intended to make it more (...) accessible to students and the general reader. (shrink)

This is identical with the first edition (see 21: 2716) except for the addition of a Supplement containing 5 previously published articles and the bringing of the bibliography (now 73 items) up to date. The 5 added articles present clarifications or modifications of views expressed in the first edition. (PsycINFO Database Record (c) 2009 APA, all rights reserved).

The first edition of this book profoundly challenged and divided students of philosophy, sociology, and the history of science when it was published in 1976. In this second edition, Bloor responds in a substantial new Afterword to the heated debates engendered by his book.

Logical relativism is the view that a logical proposition is known just in case it is collectively endorsed in some culture. This striking and controversial view is defended by David Bloor and Richard C. Jennings. They cite in its support distinctive reasoning practices among the Azande as described by E. E. Evans-Pitchard. Jennings has challenged my critique of Bloor's logical relativism, claiming that my analysis is based on misunderstandings of Bloor and Evans-Pritchard. I argue that Jennings' clarifications of Bloor do (...) nothing to support the thesis of logical relativism, and that a direct examination of Evans-Pritchard's evidence suggests that the Azande reason just as we do. (shrink)

Zande Logic and Western Logic’ Richard Jennings argues that contrary to the view of Evans-Pritchard and Tim Triplett the system of logic employed by the Azande is sui generis and distinct from that of Westerners. I argue that this thesis is erroneous because Jennings, following Evans-Pritchard, is at fault in his analysis of the logic of the Azande. Zande thinking on the topic of witchcraft-substance heritability is not contradictory as believed. But even if one assumes that the Azande do reason (...) contradictorily on matters of institutional importance, Jennings' thesis on the possibility of incompatible logics still fails because similar instances of contradictory thinking could be found in the West. Although in practical matters all peoples appeal to orthodox logic, in matters of institutional importance the epistemological relativist could be on fertile ground where orthodox logic is in conflict with beliefs that are institutionally grounded. (shrink)

In this paper I discuss logic from a naturalist point of view, characterizing it as those shared patterns of thought which are socially selected from among the various patterns of thought to which we are naturally inclined. Drawing on Evans-Pritchard's anthropology. I discuss a particular example of Zande thought. I argue that Evans-Pritchard's and Timm Triplett's analyses of this example make the mistake of applying Western logic to Zande beliefs and thus find a contradiction. I argue that from the naturalistic (...) point of view. Zande logic is different from Western logic and that there is no contradiction in Zande thought. (shrink)

Throughout the history of western philosophy, the Socratic injunction to ‘follow the argument where it leads’ has exerted a powerful attraction. But what is it, exactly, to follow the argument where it leads? I explore this intellectual ideal and offer a modest proposal as to how we should understand it. On my proposal, following the argument where it leaves involves a kind of modalized reasonableness. I then consider the relationship between the ideal and common sense or ‘Moorean’ responses to revisionary (...) philosophical theorizing. (shrink)

Michael Dummett, Frege and other philosophers. Oxford:Clarendon Press, 1991. xii + 330pp. £35. ISBN W.Balzer and C.U.Moulines, Structuralist theory of science:focal issues, new results, Berlin; de Gruyter, 1996. xi + 295 pp.DM 210. ISBN 3-11-014075-6 Henry Prakken, Logical tools for modeling legal argument a study of defeasible reasoning in law.Dordrecht, The Netherlands:Kluwer Academic, 1997, xiii + 314pp.£75.00/$125.00 J.Srzednicki and Z.Stachniak Lesniewski’s Systems.Protothetic.Nijhoff International Philosophy Series, 54, Dordrecht, Boston and London:Kluwer, 1998. xiv + 310 pp, £99. ISBN 0-7923-4504-5.

Sorites arguments employ an induction step such as ‘Small numbers have small successors’. People deduce that there must be an exception to the generalization but are reluctant to conclude that the generalization is false. My hypothesis is that the reluctance is due to the "Generic Overgeneralization Effect". Although the propounder of the sorites paradox intends the induction step to be a universal generalization, hearers assimilate universal generalizations to generic generalizations (for instance, ‘All birds fly’ tends to be remembered as ‘Birds (...) fly’). Most generic generalizations tolerate exceptions – especially when those exceptions are rare, abnormal, or difficult to imagine. Any counterexample to the induction step will have all of these features. (shrink)