In: Advanced Math
Prove the set identities...
Theorem 2.2.19 (Set identities I). Let A be a set with universal set U.
Identity laws: A ∩ U = A; A ∪ ∅ = A
Domination laws: A ∪ U = U; A ∩ ∅ = ∅
Idempotent laws: A ∪ A = A; A ∩ A = A
Complementation law: A = A
Complement laws: A ∪ A = U; A ∩ A = ∅
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