Mathematics · Relations and Functions

मान लीजिए A = {2, 3, 5, 7, 9} है। मान लीजिए R, A पर परिभाषित एक संबंध है जो xRy द्वारा तभी संतुष्ट होता है जब 2x ≤ 3y हो। यदि l, R में अवयवों की संख्या है, और m, R को एक सममित (symmetric) संबंध बनाने के लिए इसमें जोड़े जाने वाले अवयवों की न्यूनतम संख्या है, तो l + m बराबर है:

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