Question
In the question below some statements are given
followed by three conclusions I, II and III. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the statements and then decide which of the given conclusion definitely follows from the given statements, disregarding commonly known facts. Statements: All Pig is Piglet. No Piglet is Dog. All Dog is Cat. Conclusions: I. Some Pig is not Dog. II. Some Piglet is Pig. III. Some Cat is not Dog.Solution
All Pig is Piglet (A) + No Piglet is Dog (E) → Some Pig is not Dog (O). Hence conclusion I follows. All Pig is Piglet (A) → Conversion → Some Piglet is Pig (I). Hence conclusion II follows. All Dog is Cat (A) → Conversion → Some Cat is Dog (I). Hence conclusion III does not follow.
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