Question

“What birds don’t fly” — what type of proposition is this?

• A. A
• B. E
• C. I
• D. O

Hint:

Proposition Codes: $A$ = All S is P; $E$ = No S is P; $I$ = Some S is P; $O$ = Some S is not P.

Answer 1

The Correct Option is D

In Logic, propositions are categorized by quantity and quality: A, E, I, and O.
The statement implies that ``Some birds do not fly'' (e.g., Ostriches), acknowledging the existence of birds that lack the attribute of flight.
A proposition of the form ``Some S is not P'' is a Particular Negative proposition.
The symbol for a Particular Negative proposition is $O$.