Question: a. Is 4 = {4}? b. How many elements are in the set {3, 4, 3, 5}? c. How many elements are in the set

a. Is 4 = {4}?
b. How many elements are in the set {3, 4, 3, 5}?
c. How many elements are in the set {1,{1},{1,{1}}}?

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