src/Sequents/S4.ML
author paulson
Wed, 09 Oct 1996 13:32:33 +0200
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New unified treatment of sequent calculi by Sara Kalvala combines the old LK and Modal with the new ILL (Int. Linear Logic)
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(*  Title:      Modal/S4
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    ID:         $Id$
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    Author:     Martin Coen
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    Copyright   1991  University of Cambridge
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*)
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local open Modal0_rls S4
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in structure MP_Rule : MODAL_PROVER_RULE =
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   struct
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    val rewrite_rls = rewrite_rls
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    val safe_rls    = safe_rls
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    val unsafe_rls  = unsafe_rls @ [boxR,diaL]
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    val bound_rls   = bound_rls @ [boxL,diaR]
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    val aside_rls   = [lstar0,lstar1,lstar2,rstar0,rstar1,rstar2]
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   end;
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end;
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structure S4_Prover = Modal_ProverFun(MP_Rule);