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WorksheetsPHIL109010 030519
Total questions: 4
Worksheet time: 3mins
What is the obverse of "Some rectangles are not squares"?
Some squares are not rectangles.
Some non-squares are non-rectangles.
Some rectangles are non-squares.
Some rectangles are not non-squares.
What is the contrapositive of "Some dragons are red"?
Some non-dragons are non-red things.
Some non-red things are non-dragons.
Some red things are dragons.
Some dragons are not non-red things.
Which of the following is equivalent to "Some books are not classics"?
Some classics are books.
Some non-classics are not non-books.
Some non-classics are non-books.
Some non-books are non-classics.
Which of the following is equivalent to "All humans are great beings"?
All great beings are humans.
No non-great being is a non-human.
Some non-great beings are non-humans.
No human being is a non-great being.
