- #1
john562
- 8
- 0
Homework Statement
Let B be a non-empty set, and supose that {Sa : a[tex]\in[/tex]B} is an B- indexed family of subsets of a set S. Then we have,
([tex]\cup[/tex] a\in B Sa)c = [tex]\bigcapa\in B[/tex] Sac.
Homework Equations
The Attempt at a Solution
I tried to show that the two were both subsets of each other, but I'm not sure how to do that.