Which of the following statements are logically equivalent?
A. Some beverages are not liquids.
B. Some beverages are liquids.
C. Some non-liquids are not non-beverages.
D. Some beverages are non-liquids.
Choose the correct answer from the options given below:निम्नलिखित में से कौन-से कथन तार्किक रूप से समतुल्य हैं?
A. कुछ पेय पदार्थ तरल नहीं हैं।
B. कुछ पेय पदार्थ तरल हैं।
C. कुछ अ-तरल, अ-पेय पदार्थ नहीं हैं।
D. कुछ पेय पदार्थ अ-तरल हैं।
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: D. A, C and D Onlyकेवल A, C और D
Explanation
D is the obverse of A (O-proposition → I with complemented predicate). C obverts to 'Some non-liquids are beverages', whose converse is D. So A, C and D are equivalent; B (an I-proposition about liquids) is not. Hence A, C and D Only.D, A का प्रतिवर्तन (obverse) है (O-प्रतिज्ञप्ति → पूरक विधेय वाली I)। C का प्रतिवर्तन 'कुछ अ-तरल पेय पदार्थ हैं' है, जिसका परिवर्तन (converse) D है। अतः A, C और D समतुल्य हैं; B नहीं। अतः केवल A, C और D।More Logical Reasoning questions
- According to classical Indian School of Logic (Nyaya) the statement "fire is cold because it is a substance" is fallacious because:
- Identify the fallacy committed in the statement given below: "People who lack arrogance are intelligent because intelligent people do not h…
- Which of the following propositions is contrary to the proposition "All cows are herbivores"?
- Which of the following statements are logically equivalent? (A) All cows are herbivores. (B) All herbivores are cows. (C) Some herbivores a…
- Which of the following propositions cannot both be false, though they can both be true? (A) All cows are herbivores. (B) No cows are herbiv…
- According to classical Indian Philosophy the source of knowledge based on cognition of an object, similar to another one which is already k…