Question Number 47071 by 23kpratik last updated on 04/Nov/18
$${prove}\:{that}\:{union}\:{of}\:{two}\:{subgroups}\:{of}\:{a}\:{group}\:{is}\:{a}\:{subgroup}\:{iff}\:{one}\:{is}\:{contained}\:{in}\:{other} \\ $$
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Question Number 47071 by 23kpratik last updated on 04/Nov/18 | ||
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$${prove}\:{that}\:{union}\:{of}\:{two}\:{subgroups}\:{of}\:{a}\:{group}\:{is}\:{a}\:{subgroup}\:{iff}\:{one}\:{is}\:{contained}\:{in}\:{other} \\ $$ | ||