2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/163973On an infinite base set X, every ideal of subsets of X can be associated with the clone of those operations on X which map small sets to small sets. We continue earlier investigations on the position of such clones in the clone lattice.25 pages. Streamlined, better readableRings and AlgebrasLogic08A40; 08A05text