<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: • symmetric_relations • reflexive_relations • left_cancellative_semigroups • cancellative_commutative_semigroups • weakly_representable_relation_algebras • congruence_types • bilattices • allegories • residuated_lattices • finite_ordered_semilattices