Revision history of "Union of subsets is a subset of the union"

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  • (cur | prev) 21:33, 15 August 2015Alec (Talk | contribs). . (1,565 bytes) (+1,565). . (Created page with "==Statement== {{Yellow Note|Given two arbitrary families of sets, {{M|\{A_\alpha\}_{\alpha\in I} }} and {{M|\{B_\alpha\}_{\alpha\in I} }} such that {{M|\forall\alpha\in I[B_\a...")