5-(15 points) Suppose variables x-y denote people- Y(x-y) denotes - x.docx

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5.(15 points) Suppose variables x , y denote people. Y ( x , y ) denotes " x is younger than y ". F ( x , y ) denotes " x is a friend of y ". Translate the following sentences into logic: a. Emma is the youngest person b. Ruth is the oldest person c. Everyone has a friend d. There is someone who is everybody's friend. e. There is someone who is nobody's friend. f. Joshua has a younger friend. .

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