A flag DEFS_CHAIN_HISTORY can be used to improve the error message
in case a cycle has been detected. If it is switched off and a cycle has been
detected, the user is notified that there is such a flag.
(* Title: Modal/T
ID: $Id$
Author: Martin Coen
Copyright 1991 University of Cambridge
*)
local open Modal0_rls T
in structure MP_Rule : MODAL_PROVER_RULE =
struct
val rewrite_rls = rewrite_rls
val safe_rls = safe_rls
val unsafe_rls = unsafe_rls @ [boxR,diaL]
val bound_rls = bound_rls @ [boxL,diaR]
val aside_rls = [lstar0,lstar1,lstar2,rstar0,rstar1,rstar2]
end
end;
structure T_Prover = Modal_ProverFun(MP_Rule);