De Morgan's laws (sets) (Complement swaps ∪ with ∩ and distributes to each part)
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Complement swaps ∪ with ∩ and distributes to each part
What each symbol means
| Symbol | What it stands for |
|---|---|
| A, B | Subsets of universal set U |
| ^{c} | Complement in U |
When to use this
Fixed universal set U; complements taken in U.