Prove-the-following-set-identities-1-A-B-C-A-B-C-2-A-A-3-A-B-C-A-B-A-C-

Question Number 186682 by pete last updated on 08/Feb/23

Prove the following set identities

1) A \cup (B \cup C) = (A \cup B) \cup C

2) A \cup \emptyset = A

3) A \cap (B \cup C) = (A \cap B) \cup (A \cap C)