Paper 1 · Logical Reasoning
UGC NET June 2024 Re-Exam (29.08.2024) Shift-I
If a person falls ill after consuming mushrooms, and concludes 'since I have digestive problems this morning, the mixed vegetable soup I had last night must have contained mushrooms', what is the fault, if any, in the above reasoning?
AThis is a valid argument
BAffirming the consequent ✓ Correct
CUnthoughtful generalization
DSelf-reliance fallacy
Correct answer: (B) Affirming the consequent — The fault is affirming the consequent, so that is the answer.
Explanation
★The fault is affirming the consequent, so that is the answer.
★The rule is: mushrooms cause illness.
★The person observes the illness and asserts the cause.
★This reverses the conditional, assuming the effect proves the cause.
★Other causes of the illness are ignored.
★Hence affirming the consequent is correct.
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