Subjects/Algebra/Algebraic structures/Subgroup criterion27. Algebraic structuresSubgroup criterionLevel: advancedIn 27. Algebraic structuresFormulaCopy LaTeXa,b∈H⇒ab−1∈HDetailCompact criterion for verifying nonempty subgroups.Related formulasRelatedGroup(G,∗) con clausura, asociatividad, identidad e inversosOpen formulaOpen in section