Revision history of "Cover"

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  • (cur | prev) 11:02, 1 December 2015Alec (Talk | contribs). . (415 bytes) (+415). . (Created page with "==Definition== An arbitrary family of sets, {{M|1=\{S_\alpha\}_{\alpha\in I} }} is said to ''cover'' another set, {{M|X}} if{{rITTGG}}: * {{MM|1=X\subseteq\bigcup_{\alpha\in I...")