The Unity of Reason: Kant’s Copernican Presupposition

Edward Thornton* (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Downloads (Pure)


In the controversial Appendix to the Transcendental Dialectic, Kant claims to “complete the critical work of pure reason” [A670/B698] by providing a transcendental deduction of the ideas of pure reason. In order to analyse the role that this Appendix plays in the first Critique, this paper will read the Appendix alongside Kant’s comments in the B-Preface concerning the astronomy of Copernicus. Through an analysis of the nature of Kant and Copernicus’ respective use of presuppositions, and by looking at their respective attempts to unify a science around a single systematic conception of the object of that science, this paper will offer a defence of the fundamental role that Kant’s transcendental deduction of the ideas of pure reason plays in the text.
Original languageEnglish
Pages (from-to)213-235
Number of pages23
JournalJournal of Transcendental Philosophy
Issue number2
Early online date6 Jan 2021
Publication statusPublished - 27 Jul 2021


  • Kant
  • Copernicus
  • Reason
  • Presupposition
  • Metaphysics


Dive into the research topics of 'The Unity of Reason: Kant’s Copernican Presupposition'. Together they form a unique fingerprint.

Cite this