Mathematical Proof and Discovery <i>Reductio ad Absurdum</i>

The uses and interpretation of reductio ad absurdum argumentation in mathematical proof and discovery are examined, illustrated with elementary and progressively sophisticated examples, and explained. Against Arthur Schopenhauer’s objections, reductio reasoning is defended as a method of uncovering...

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Bibliographic Details
Main Author: Dale Jacquette
Format: Article
Language:English
Published: University of Windsor 2008-09-01
Series:Informal Logic
Subjects:
Online Access:https://informallogic.ca/index.php/informal_logic/article/view/596
Description
Summary:The uses and interpretation of reductio ad absurdum argumentation in mathematical proof and discovery are examined, illustrated with elementary and progressively sophisticated examples, and explained. Against Arthur Schopenhauer’s objections, reductio reasoning is defended as a method of uncovering new mathematical truths, and not merely of confirming independently grasped mathematical intuitions. The application of reductio argument is contrasted with purely mechanical brute algorithmic inferences as an art requiring skill and intelligent intervention in the choice of hypotheses and attribution of contradictions deduced to a particular assumption in a contradiction’s derivation base within a reductio proof structure.
ISSN:0824-2577
2293-734X