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Nagel on reduction.

Sahotra Sarkar1

  • 1University of Texas at Austin, United States.

Studies in History and Philosophy of Science
|September 21, 2015
PubMed
Summary
This summary is machine-generated.

This paper defends Ernest Nagel's model of scientific reduction, arguing it correctly frames reduction as explanation. It revises the model to include broader inferential techniques beyond logical deduction.

Keywords:
EmergenceEpistemologyExplanationMultiple realizabilityNagelReductionism

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Area of Science:

  • Philosophy of Science
  • Scientific Theory Reduction

Background:

  • Ernest Nagel's model (1961, 1970) defines reduction as explanation via theory connection.
  • The model traditionally relies on the deductive-nomological framework and logical deduction.

Observation:

  • Traditional criticisms and recent defenses of Nagel's model are re-evaluated.
  • Nagel's pluralism regarding logical form and epistemological status is defended.
  • The multiple realizability objection to reductionism is critiqued as misplaced.

Findings:

  • Nagel's model accurately characterizes reduction as a form of scientific explanation.
  • Logical deduction is insufficient; a broader range of inferential techniques, including approximation, is necessary.
  • Nagel's later work acknowledged approximation but underestimated its full impact.

Implications:

  • The revised Nagel model accommodates complex scientific reductions more effectively.
  • This framework supports understanding inter-theory relations in fields like thermodynamics and molecular biology.
  • It refines the philosophical understanding of scientific progress and theory integration.