alleryকোন পাল্টা উদাহরণ "সমস্ত A হল C" মিথ্যা, কিন্তু "সমস্ত A হল B" এবং "কিছু B হল C" সত্য?
AA={1}, B={1,2}, C={2}
BA={1}, B={1}, C={1}
CA={1,2}, B={1}, C={2}
DA={1}, B={2}, C={1}
Answer & Solution
Correct answer: A. A={1}, B={1,2}, C={2}
বিকল্প B-এ, B সেটে A সেট রয়েছে। B সেট C সেটকে 2 এ ওভারল্যাপ করে, কিন্তু A সেটের সদস্য1 সেট C এর বাইরে।
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