Vol 18 No 2 (2018)
Logic and Law

Logic in law. A response to Riccardo Guastini

Luigi Ferrajoli
Law dpt., University of Roma Tre
Published December 21, 2018
  • deontic logic,
  • legal theory,
  • judicial reasoning,
  • Riccardo Guastini


This paper, originated from a criticism by Riccardo Guastini to my views about law and logic, concerns the role of logic in law, namely: a) in the construction of legal theory; b) in the reasoning of legal science; c) in the reasoning and operations of legal practitioners, particularly judges