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Which of the following is the contrapositive of the implication "If it is not Monday, then I am happy." ? If it is not Monday, then I am happy. If I am not happy, then it is not Monday. If I am happy, then it is not Monday. If it is Monday, then I am not happy. If I am not happy, then it is Monday. If it is not Monday, then I am not happy. If I am happy, then it is Monday. Question 5 (5 points) Consider the following statement S : If x+y is not an integer, then x or y is not an integer. Which of the following is the inverse of S ? a) If x and y are integers, then x+y is an integer. b) If x or y is an integer, then x+y is an integer. c) If x or y is not an integer, then x+y is not an integer. d) If x and y are not integers, then x+y is not an integer. e) If x+y is an integer, then x and y are integers. f) If x and y are integers, then x+y is an integer. 8) If x+y is an integer, then x or y is an integer