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Trace: • generalized_pseudo-effect_algebras • finite_ordered_semigroups_with_zero • distributive_lattices_with_operators • finite_binars_with_identity_and_zero • normal_valued_lattice-ordered_groups • weakly_associative_relation_algebras • residuated_lattice-ordered_semigroups • finite_commutative_binars_with_identity • commutative_partially_ordered_semigroups • pseudocomplemented_distributive_lattices