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How many proper subsets does the set T = {i, c, j, e} have?
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How many proper subsets does the set T = {i, c, j, e} have?

User Llewellyn
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Number of proper subsets = 2^number of elements- 1
= 2^n - 1
No of elements = 4
2^4-1 = 16-1 = 15
User VforVitamin
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