To prove: ⌊ x ⌋ + ⌊ y ⌋ ≤ ⌊ x + y ⌋ for all real numbers x and y .

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Chapter 3.1, Problem 9E

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To prove: ⌊x⌋+⌊y⌋≤⌊x+y⌋ for all real numbers x and y.

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