kaliflower5705 kaliflower5705
  • 25-05-2023
  • Mathematics
contestada

Let U be a universal set, and suppose A and B are subsets of U. (a) How are (z € A → x B) and (x € Bº → x € Aº) logically related? Why? (b) Show that ACB if and only if Bc C Aº.

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