<div id="insert"></div> <script src="http://math.chapman.edu/~jipsen/structures/ua.js"></script> <script>init("OSgrp",4,{associative:true,ordered:true})</script>
Trace: • finite_commutative_semigroups_with_zero • brouwerian_algebras • ordered_abelian_groups • first-order_classes • partial_semigroups • finite_semigroups_with_zero • bilinear_algebras • idempotent_semirings • kleene_algebras • finite_ordered_semigroups