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