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If 'All men are mortal' is True, then 'Some men are mortal' is:
AFalse
BContradictory
CUndefined
DTrue
Answer & Solution
Correct answer: D. True
1. Universal affirmative → Particular affirmative is a valid sub-alternation.
2. From A (True), I follows as True in Aristotelian logic.
3. Hence True.
_Source: Oswaal UGC NET Paper 1 Solved Paper Nov 2021 — PYQ Nov 2021 Q.23_