Substructural Analysis of S(K4) and S(S4)

  • Luca Viganò


Lemma 8.2.4 and Corollary 9.1.2 tell us that the rules CrL and C1R and each application of C1L with principal formula other than x:□A can be eliminated in S(K4) and S(S4).


Deduction System Propositional Variable Infinite Chain Proof Search Related Rule 
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Copyright information

© Springer Science+Business Media Dordrecht 2000

Authors and Affiliations

  • Luca Viganò
    • 1
  1. 1.Institut für InformatikAlbert-Ludwigs-Universität FreiburgFreiburg im BreisgauGermany

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