, Volume 64, Issue 1, pp 115–138 | Cite as

The Tacking by Disjunction Paradox: Bayesianism Versus Hypothetico-Deductivism

  • Luca Moretti


Hypothetico-deductivists have struggled to develop qualitative confirmation theories not raising the so-called tacking by disjunction paradox. In this paper, I analyze the difficulties yielded by the paradox and argue that the hypothetico-deductivist solutions given by Gemes [1998, Erkenntnis 49, 1–20] and Kuipers [2000, From Instrumentalism to Constructive Realism, Kluwer, Dordrecht] are questionable because they do not fit such analysis. I then show that the paradox yields no difficulty for the Bayesian who appeals to the Total Evidence Condition. I finally argue that the same strategy is unavailable to the hypothetico-deductivist.


Evidence Condition Total Evidence Confirmation Theory Constructive Realism Bayesianism Versus 
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Copyright information

© Springer 2006

Authors and Affiliations

  1. 1.Center for Junior Research FellowsUniversity of KonstanzKostanzGermany

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