Indicate the form of the following categorical propositions: (i) All men are mortal.
(ii) No Indians are Americans.
(iii) Ram is a man.
Show Hint
Categorical propositions can be classified into four types: A (universal affirmative), E (universal negative), I (particular affirmative), and O (particular negative).
The forms of the categorical propositions can be identified as follows:
All men are mortal.
This is a universal affirmative proposition (A form). It asserts that all members of one class (men) belong to another class (mortal).
No Indians are Americans.
This is a universal negative proposition (E form). It states that no member of one class (Indians) belongs to another class (Americans).
Ram is a man.
This is a particular affirmative proposition (I form). It asserts that some member of one class (Ram) belongs to another class (man).
Conclusion:
The categorical forms of the propositions are:
(i) A form (universal affirmative)
(ii) E form (universal negative)
(iii) I form (particular affirmative)