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Exercise 5 - Chapter 1
Let \(A := \{h, 1\}\) and \(B := \{1, 2, 3\}\).
- There are eight subsets of \(B\); write them out.
- There are six elements in \(A \times B\); write them out.
Comments
Here is my solution to the first part.
Here is my solution to the first part. 1. \\( \\{ \\}, \\{ 1 \\}, \\{ 2 \\}, \\{ 3 \\}, \\{ 1, 2 \\}, \\{ 1, 3 \\}, \\{ 2, 3 \\}, \\{ 1, 2, 3 \\} \\).2: \(A \times B = \{(h,1), (h,2), (h,3), (1,1), (1,2), (1,3)\} \)
2: \\(A \times B = \\{(h,1), (h,2), (h,3), (1,1), (1,2), (1,3)\\} \\)