Normal form (natural deduction)

From Wikipedia, the free encyclopedia

An inference of natural deduction is a normal form, according to Dag Prawitz, if no formula occurrence is both the principal premise of an elimination rule and the conclusion of an introduction rule.[1]

References[]

  1. ^ Prawitz, Dag (2006-02-24). Natural Deduction: A Proof-Theoretical Study. Courier Dover Publications. ISBN 978-0-486-44655-4.


Stub icon

This logic-related article is a stub. You can help Wikipedia by .

  • v
  • t
Retrieved from ""