allery'সকলো S হ'ল P'ৰ প্ৰতিৱৰ্তন কি?
Aকিছুমান S হ'ল অ-P
Bকোনো S, P নহয়
Cসকলো অ-S হ'ল P
Dকোনো S, অ-P নহয়
Answer & Solution
Correct answer: D. কোনো S, অ-P নহয়
প্ৰতিৱৰ্তনে গুণ সলনি কৰে আৰু বিধেয়ক ইয়াৰ পৰিপূৰক পদৰ দ্বাৰা প্ৰতিস্থাপন কৰে, যাৰ ফলত 'কোনো S, অ-P নহয়' পোৱা যায়।
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