Journal for General Philosophy of Science

, Volume 37, Issue 2, pp 405–415 | Cite as

Lakatos’s Challenge? Auxiliary Hypotheses and Non-Monotonous Inference

  • Frank Zenker


Gerhard Schurz [2001, Journal for General Philosophy of Science, 32, 65–107] has proposed to reconstruct auxiliary hypothesis addition, e.g., postulation of Neptune to immunize Newtonian mechanics, with concepts from non-monotonous inference to avoid the retention of false predictions that are among the consequence-set of the deductive model. However, the non-monotonous reconstruction retains the observational premise that is indeed rejected in the deductive model. Hence, his proposal fails to do justice to Lakatos’ core-belt model, therefore fails to meet what Schurz coined “Lakatos’ challenge”. It is argued that Lakatos’s distinction between core and belt of a research program is not mapable onto premise-set and consequence-set and that Schurz’s understanding of a ceteris paribus clause as a transfinite list of (absent) interfering factors is problematic. I propose a simple reading of Lakatos’s use of the term ceteris paribus clause and motivate why the term hypothesis addition, despite not being interpretable literally, came to be entrenched.

It is not that we propose a theory and Nature may shout NO; rather we propose a maze of theories and Nature may shout INCONSISTENT.

Lakatos (1978, p. 45)


auxiliary hypothesis ceteris paribus clause deductive theory reconstruction non-monotonous reasoning theory immunization 


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  1. Carnap R. (1958) ‘Beobachtungssprache und theoretische Sprache’. Dialectica 12: 236–248Google Scholar
  2. Coffa J. (1968) ‘Deductive Predictions’. Philosophy of Science 35: 279–283CrossRefGoogle Scholar
  3. Ga̋hole U. (2002) ‘Holism, Underdetermination, and the Dynamics of Empirical Theories’. Synthese 130: 69–90CrossRefGoogle Scholar
  4. Hempel C.G. (1988) ‘Provisoes A Problem Concerning the Inferential Function of Science’. Erkenntnis 28: 147–164CrossRefGoogle Scholar
  5. Johansson I. (1980) ‘Ceteris Paribus Clauses Closure Clauses and Falsifiability’. Zeitschrift für allgemeine Wissenschaftstheorie 11(1): 16–22CrossRefGoogle Scholar
  6. Laplace P.-S. (1824)5, Exposition du Système du Monde. Bachelier, ParisGoogle Scholar
  7. Putnam H. (1962) ‘What Theories are not’. In Nagel E., Suppes P., Tarsky A. (eds) Logic, Methodology and Philosophy of Science. Stanford University Press, StanfordGoogle Scholar
  8. Roseveare N.T. (1982) Mercury’s Perihelion From Le Verrier to Einstein. Clarendon, OxfordGoogle Scholar
  9. Schurz G. (2001) ‘Normische Gesetzeshypothesen und die Bedeutung des nicht- monotonen Schliessens’. Journal for General Philosophy of Science 32: 65–107CrossRefGoogle Scholar

Copyright information

© Springer 2007

Authors and Affiliations

  1. 1.Lunds Universitet Filosofiska institutionen KungshusetLundSweden

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