Logical Non-Apriorism and the 'Law' of Non-Contradiction

Otávio Bueno, Mark Colyvan

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations


A common response to those who question the Law of Non-Contradiction (LNC) is that it is impossible to debate such a fundamental law of logic. The reasons for this response vary, but what seems to underlie them is the thought that there is a minimal set of logical resources without which rational debate is impossible. This chapter argues that this response is misguided. First, it defends non-apriorism in logic: the view that logic is in the same epistemic boat as other scientific theories. It then offers an account of logical theory change in terms of this epistemology. The LNC is discussed in terms of this account of logical theory change, and it is shown that rational debate over this law can, and does, proceed. Finally, arguments for and against the LNC are discussed, and how and where non-a priori considerations arise in these arguments are illustrated.

Original languageEnglish (US)
Title of host publicationThe Law of Non-Contradiction
PublisherOxford University Press
ISBN (Electronic)9780191713989
ISBN (Print)0199265178, 9780199265176
StatePublished - May 1 2010
Externally publishedYes


  • Epistemology
  • Law of logic
  • Law of non-contradiction
  • Logical non-apriorism
  • Logical theory change
  • Non-apriorism in logic
  • Rational debate

ASJC Scopus subject areas

  • Arts and Humanities(all)


Dive into the research topics of 'Logical Non-Apriorism and the 'Law' of Non-Contradiction'. Together they form a unique fingerprint.

Cite this