Which of the following forms of categorical proposition are valid forms of the categorical proposition?
1.Some S is not P
2.Some S is P
3.No S is P
4.All S is P
A1, 2 & 3 only
B2, 3 & 4 only
C1, 3 & 4 only
D1, 2, 3 & 4 ✓ Correct
Correct answer: (D) 1, 2, 3 & 4
Explanation
All four are the standard forms of the categorical proposition.
'All S is P' is the universal affirmative A.
'No S is P' is the universal negative E.
'Some S is P' is the particular affirmative I, and 'Some S is not P' the particular negative O.
Combining quality and quantity gives exactly these four A, E, I, O forms.
Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.
Practise on Mcqkart →🎓 Book an expert →