In each question below are two statements followed by two conclusions numbered I and II. You have to take the given statement to be true even if they seems to be at variance from commonly known facts and then decide which of the given conclusion logically follows from the given statements disregarding commonly known facts.
Statements: Some letters are words
Some words are sentences
Conclusions: I. No letter is sentence
II. At least some sentences are letters
Solution
Conclusions: I. No letter is sentence.
We cannot conclude the negative conclusion from the positive statement. So it does not follow.
II. At least some sentences are letters
There is no direct relation between 'sentences' and 'letters'. So we cannot conclude the given conclusion. So it does not follow.
Neither conclusion I or II follows.
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