Module Logtk.Index_intf
module type LEAF = sig ... endmodule type TERM_IDX = sig ... endtype lits= term SLiteral.t Iter.tIter of literals, as a cheap abstraction on query clauses
type labels= Logtk.Util.Int_set.t
module type CLAUSE = sig ... endmodule type SUBSUMPTION_IDX = sig ... endmodule type EQUATION = sig ... endmodule type UNIT_IDX = sig ... end