module SA :
Stdlib.Set.S with type elt = AltErgoLib.Expr.t * AltErgoLib.Explanation.tval find : r -> t -> AltErgoLib.Expr.Set.t * SA.tval add : r -> (AltErgoLib.Expr.Set.t * SA.t) -> t -> tval congr_add : t -> r list -> AltErgoLib.Expr.Set.tval up_close_up : t -> r -> r -> tval congr_close_up : t -> r -> r list -> AltErgoLib.Expr.Set.t * SA.t