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Page:Carroll - Game of Logic.djvu/57

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§ 2.]
41
CROSS QUESTIONS.
 

 
Taking = "diligent students"; = "successful";

15. No diligent students are unsuccessful.

16. All diligent students are successful.

17. No students are diligent.

18. There are some diligent, but unsuccessful, students

19. Some students are diligent.

[See pp. 60, 1]