Which of the following propositions is contrary to the proposition "All cows are herbivores"?निम्नलिखित में से कौन-सी तर्कवाक्य 'सभी गायें शाकाहारी हैं' तर्कवाक्य का विपरीत (contrary) है?
Pick an option to check yourself, or open the answer below.
Show answer & explanation
Correct answer: D. No cows are herbivores.कोई भी गाय शाकाहारी नहीं है।
Explanation
In the square of opposition, A ('All S is P') and E ('No S is P') are contraries — they cannot both be true but can both be false. So the contrary is 'No cows are herbivores'. 'Some cows are not herbivores' (O) is the contradictory.विरोध-चतुष्कोण में A ('सभी S, P हैं') और E ('कोई S, P नहीं है') विपरीत (contrary) हैं — दोनों एक साथ सत्य नहीं हो सकते, पर दोनों असत्य हो सकते हैं। अतः विपरीत है 'कोई भी गाय शाकाहारी नहीं है'। 'कुछ गायें शाकाहारी नहीं हैं' (O) व्याघाती (contradictory) है।More Logical Reasoning questions
- 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…
- Which fallacy is committed in the following argument – "Ambassador cars have almost disappeared. This is an Ambassador car. Therefore, this…
- Which of the following statements are true regarding contrary propositions? (A) They cannot both be true (B) They cannot both be false (C)…
- Which of the following statements are logically equivalent? (A) Some non-dogs are non-friendly animals (B) Some dogs are friendly animals (…