26. Stoic Logic

  1. Mary Louise Gill2 and
  2. Pierre Pellegrin3
  1. Katerina Ierodiakonou

Published Online: 8 MAY 2012

DOI: 10.1002/9781444305845.ch26

A Companion to Ancient Philosophy

A Companion to Ancient Philosophy

How to Cite

Ierodiakonou, K. (2012) Stoic Logic, in A Companion to Ancient Philosophy (eds M. L. Gill and P. Pellegrin), John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9781444305845.ch26

Editor Information

  1. 2

    Brown University, USA

  2. 3

    National Center for Scientific Research (Paris), France

Author Information

  1. Department of Humanities at the National Technical University of Athens, Greece

Publication History

  1. Published Online: 8 MAY 2012
  2. Published Print: 2 MAY 2012

ISBN Information

Print ISBN: 9780631210610

Online ISBN: 9781444305845



  • Stoic logic;
  • Stoic philosophers, logic as part of philosophy, the others as physics and ethics;
  • Stoics dividing logic into rhetoric (rhetorikē) and dialectic (dialektikē);
  • Stoic logic, at a systematic understanding of the rules of rationality;
  • Stoic logical system, relations between items having structure of proposition;
  • Stoics, dividing lekta into the complete and incomplete;
  • Sextus' definition of a Stoic axiōma;
  • indemonstrable arguments, those whose validity not in need of demonstration;
  • the Stoic logicians, eliminating ambiguities by standardizing language;
  • revival of interest in the logic of the Stoics, into other parts of Stoic philosophy


This chapter contains sections titled:

  • Introduction

  • The Stoic Logical System

  • Conclusion

  • Bibliography