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UGC-NET-Paper1

Logical Reasoning

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Read the Question carefully and choose the correct option.
Match the column:
(Square of opposition)
a. if 'A' is true
b. if 'E' is false
c. if 'I' is true
d. if 'O' is false

(Result)
i. 'A' is undetermined; 'I' is true
ii. 'E' is false, 'A' is true
iii. 'I' is true, 'E' is false
iv. 'O' is undetermined 'E' is false

1. a-i b-ii c-iii d-iv
2. a-iv b-i c-ii d-iii
3. a-iv b-iii c-ii d-i
4. a-iii b-i c-iv d-ii

कॉलम का मिलान करें:
(विरोध वर्ग)
a. if 'A' is true
b. if 'E' is false
c. if 'I' is true
d. if 'O' is false

(परिणाम)
i. 'A' is undetermined; 'I' is true
ii. 'E' is false, 'A' is true
iii. 'I' is true, 'E' is false
iv. 'O' is undetermined 'E' is false

1. a-i b-ii c-iii d-iv
2. a-iv b-i c-ii d-iii
3. a-iv b-iii c-ii d-i
4. a-iii b-i c-iv d-ii
This Question came in
UGC-NET-Economics-03-January-2025-Shift-2-Q19
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Detailed Explanation & Answer
a. if 'A' is true → iii. 'I' is true, 'E' is false
→ A true implies I is true (subalternation), and E (its contradictory) must be false.

b. if 'E' is false → i. 'A' is undetermined; 'I' is true
→ E false doesn't confirm A, but I (its subcontrary) must be true.

c. if 'I' is true → iv. 'O' is undetermined, 'E' is false
→ I true implies E (its contrary) is false, but O (subaltern) can't be confirmed.

d. if 'O' is false → ii. 'E' is false, 'A' is true
→ O false implies A (its contradictory) is true, and A and E are contraries, so E must be false.
a. यदि 'A' सत्य है → iii. 'I' सत्य है, 'E' असत्य है
→ A सत्य का तात्पर्य है कि I सत्य है (उपविकल्प), तथा E (इसका विरोधाभासी) असत्य होना चाहिए।

b. यदि 'E' असत्य है → i. 'A' अनिर्धारित है; 'I' सत्य है
→ E असत्य A की पुष्टि नहीं करता है, लेकिन I (इसका विरोधाभासी) सत्य होना चाहिए।

c. यदि 'I' सत्य है → iv. 'O' अनिर्धारित है, 'E' असत्य है
→ I सत्य का तात्पर्य है कि E (इसका विरोधाभासी) असत्य है, लेकिन O (उपविकल्पी) की पुष्टि नहीं की जा सकती।

d. यदि 'O' असत्य है → ii. 'E' असत्य है, 'A' सत्य है
→ O असत्य का तात्पर्य है कि A (इसका विरोधाभासी) सत्य है, तथा A और E विरोधाभासी हैं, इसलिए E असत्य होना चाहिए।
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