Given below are two statements:
Statement I: In classical logic, the universal proposition implies the truth of its corresponding particular proposition.
Statement II: Two propositions that cannot both be true and cannot both be false are called contraries.
In the light of the above statements, choose the correct answer from the options given below:नीचे दो कथन दिए गए हैं:
कथन I: शास्त्रीय (क्लासिकी) तर्कशास्त्र के अनुसार, सार्वभौमिक तर्कवाक्य से उसके संगत विशिष्ट तर्कवाक्य का सत्य अनुमानित होता है।
कथन II: दो तर्कवाक्य, जो दोनों सत्य नहीं हो सकते और दोनों असत्य भी नहीं हो सकते, विपरीत (contraries) कहलाते हैं।
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: C. Statement I is true but Statement II is falseकथन I सत्य है, लेकिन कथन II असत्य है
Explanation
Statement I is true: in the traditional (Aristotelian) square of opposition, subalternation holds – if A is true, I is true; if E is true, O is true. Statement II is false: propositions that can be neither both true nor both false are contradictories; contraries cannot both be true but can both be false. Hence Statement I is true but Statement II is false.कथन I सत्य है: पारंपरिक (अरस्तू के) विरोध-वर्ग में उपाश्रयण (subalternation) लागू होता है – A सत्य तो I सत्य; E सत्य तो O सत्य। कथन II असत्य है: जो तर्कवाक्य न दोनों सत्य हो सकते हैं न दोनों असत्य, वे व्याघाती (contradictories) हैं; विपरीत (contraries) दोनों सत्य नहीं हो सकते पर दोनों असत्य हो सकते हैं। अतः कथन I सत्य है, लेकिन कथन II असत्य है।More Logical Reasoning questions
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