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प्रश्न
Which of the following is not equivalent to p → q.
विकल्प
p only if q
q is necessary for p
q only if p
p is sufficient for q
MCQ
उत्तर
q only if p
Explanation:
p → q means,
(i) pis sufficient for q
(ii) p only if q
(iii) q is necessary condition for p
(iv) ~ q → ~ p.
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