Normality is upper join-closed: Revision history

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• curprev 17:0517:05, 28 September 2008‎ Vipul talk contribs‎ 2,020 bytes +2,020‎ New page: {{subgroup metaproperty satisfaction| property = normal subgroup| metaproperty = upper join-closed subgroup property}} ==Statement== ===Statement with symbols=== Suppose <math>H</math> ...