Write out all the three- and four-element subsets of f1; 2; 3; 4; 5; 6; 7g in two
Chapter 17, Problem 17.9(choose chapter or problem)
Write out all the three- and four-element subsets of f1; 2; 3; 4; 5; 6; 7g in two columns. Pair each three-element subset with its complement. Your chart should have 35 rows.
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