Abstract
The ideas underlying the tableau rules of Chapter One #4 are simple. We know that if Γ is a possible world in a Kripke model, and if Γ ╟ α then Γ ╟ α and Γ ╟ α2. Likewise if Γ ╟ β then Γ ╟ β1 or Γ ╟ β2. The tableau rules obviously reflect these facts bout models. (Indeed, this will be the basis of a correctness proof in #3.)
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© 1983 Springer Science+Business Media Dordrecht
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Fitting, M. (1983). Analytic Modal Tableaus and Consistency Properties. In: Proof Methods for Modal and Intuitionistic Logics. Synthese Library, vol 169. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-2794-5_3
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DOI: https://doi.org/10.1007/978-94-017-2794-5_3
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-8381-4
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