<div id="insert"></div> <script src="http://math.chapman.edu/~jipsen/structures/ua.js"></script> <script>init("OSlat",6,{associative:true,commutative:true,idempotent:true,ordered:true})</script>
Trace: • rectangular_bands • commutative_rings_with_identity • congruence_types • finite_binars_with_identity • finite_ordered_semilattices