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\newblock {\em Entailment: The Logic of Relevance and Necessity}, 1.
\newblock Princeton University Press, Princeton, USA, 1975.

\bibitem[{Bel}82]{belnap-display}
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\newblock Display logic.
\newblock {\em J. of Philosophical Logic}, 11:375--417, 1982.

\bibitem[BGH95]{barwise-gabbay-hartonas-information-flow}
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\newblock On the logic of information flow.
\newblock {\em Bulletin of the IGPL}, 3(1):7--49, 1995.

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\newblock {\em Information Processing Letters}, 14(2):49--51, 1982.

\bibitem[Daw97]{dawson-rewr}
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\newblock Simulating term-rewriting in {LPF} and in display logic.
\newblock (submitted), Automated Reasoning Project, 1997.

\bibitem[DEL90]{debart-enjalbert-lescot-multi-modal}
F~Debart, P~Enjalbert, and M~Lescot.
\newblock Multi-modal logic programming using r=equational and order-sorted
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\newblock Technical Report 90-3, 1990.

\bibitem[DG97]{dawson-gore-dra}
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\newblock A mechanised proof system for relation algebra using display logic.
\newblock (submitted), Automated Reasoning Project, 1997.

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\newblock Cut-free display calculi for nominal tense logics.
\newblock (submitted), Automated Reasoning Project, 1998.

\bibitem[DSH93]{dosen-schroeder-heister-substructural}
K~Do{\v{s}}en and P~Schroeder-Heister, editors.
\newblock {\em Substructural Logics}.
\newblock Studies in Logic and Computation. Oxford University Press, 1993.

\bibitem[FHMV95]{Fagin&Halpern&Moses&Vardi95}
R Fagin, J Halpern, Y Moses, and M Vardi.
\newblock {\em Reasoning about {K}nowledge}.
\newblock The MIT Press, 1995.

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\newblock Linear logic.
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\bibitem[Gor97]{gore-relalg}
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\newblock Cut-free display calculi for relation algebras.
\newblock In D~van Dalen and M~Bezem, editors, {\em CSL96},
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\bibitem[Gor98]{gore-sld-igpl}
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\newblock {\em Logic Journal of the IGPL}, 6(3):451--504, 1998.

\bibitem[HC96]{hughes-cresswell-new-introduction}
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\newblock {\em A New Introduction To Modal Logic}.
\newblock Routledge, 1996.

\bibitem[HSZ96]{heuerding-seyfried-zimmermann-loop}
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\newblock Efficient loop-check for backward proof search in some non-classical
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\newblock In {\em Tableaux 96},
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\bibitem[Kra96]{kracht-power}
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\newblock Power and weakness of the modal display calculus.
\newblock In H~Wansing, editor, {\em Proof Theory of Modal Logics}, 
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\bibitem[MFD96]{fisher-woolridge-dixon-resolution}
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\newblock In D~Gabbay and J-J Ohlbach, editors, {\em Proceedings of FAPR'96},
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\bibitem[Ohl88]{ohlbach-resolution-modal}
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\newblock A resolution calculus for modal logics.
\newblock In {\em CADE-9}, LNCS 310, 
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\bibitem[Pau90]{paulson-700}
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\newblock Isabelle: The next 700 theorem provers.
\newblock In P~Odifreddi, editor, {\em Logic and Computer Science}, 
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\bibitem[Pra91]{pratt-action-logic}
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\newblock Action logic and pure induction.
\newblock In {\em JELIA90},
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\bibitem[Res98]{restall-substructural-I}
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\newblock Displaying and deciding substructural logics {I}: logics with
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\newblock {\em Journal of Philosophical Logic}, to appear, 1998.

\bibitem[Wal89]{wallen-book}
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\newblock {\em Automated Deduction in Nonclassical Logics: Efficient Matrix
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\newblock MIT Press, 1989.

\bibitem[Wan94]{wansing-sequent}
H~Wansing.
\newblock Sequent calculi for normal modal propositional logics.
\newblock {\em Journal of Logic and Computation}, 4:125--142, 1994.

\end{thebibliography}
