Given below are two statements
Statement I: To obvert a proposition, we change its quality and replace the predicate term with its complement.
Statement II: Obversion is valid for any standard form categorical proposition.
In light of the above statements, choose the correct answer from the options given below:नीचे दो कथन दिए गए हैं
कथन I: किसी तर्कवाक्य के परिवर्तन (obversion) के लिए हम उसके गुण में परिवर्तन करते हैं और विधेय पद को उसके पूरक से प्रतिस्थापित करते हैं।
कथन II: परिवर्तन (obversion) किसी भी मानक रूप वाले वर्गात्मक तर्कवाक्य के लिए वैध है।
उपर्युक्त कथनों के आलोक में, नीचे दिए गए विकल्पों में से सही उत्तर चुनिए:
Pick an option to check yourself, or open the answer below.
Show answer & explanation
Correct answer: A. Both Statement I and Statement II are trueकथन I और कथन II दोनों सही हैं
Explanation
Statement I states the rule of obversion correctly: the quality is changed (A↔E, I↔O) and the predicate is replaced by its complement, while the subject and quantity remain the same. Unlike conversion and contraposition, obversion is valid without restriction for all four standard form categorical propositions A, E, I and O, so Statement II is also true. Hence both statements are true.कथन I परिवर्तन के नियम को सही बताता है: गुण बदला जाता है (A↔E, I↔O) और विधेय को उसके पूरक से प्रतिस्थापित किया जाता है, जबकि उद्देश्य और परिमाण वही रहते हैं। परिवर्त्य (conversion) और प्रतिवर्तन (contraposition) के विपरीत, परिवर्तन चारों मानक रूप वाले वर्गात्मक तर्कवाक्यों A, E, I और O के लिए बिना किसी प्रतिबंध के वैध है, अतः कथन II भी सही है। अतः दोनों कथन सही हैं।More Logical Reasoning questions
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