4. [10 marks] Set Proof Let A,B,C CU be nonempty sets such that • AUB=BUc • ANCC B (a) [5 marks] In the following Venn D

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4 10 Marks Set Proof Let A B C Cu Be Nonempty Sets Such That Aub Buc Ancc B A 5 Marks In The Following Venn D 1 (26.67 KiB) Viewed 30 times

4. [10 marks] Set Proof Let A,B,C CU be nonempty sets such that • AUB=BUc • ANCC B (a) [5 marks] In the following Venn Diagram: place the symbol in any region which must be empty; and • place a dot ("") in any region which must contain an element. B (b) [5 marks] Without using a Venn Diagram or a member table, prove that A = B.