Some antidepressants are not safe medications for children. Therefore, some antidepressants are unsafe medications for children.
A) Invalid, illicit obversion.
B) Invalid, illicit conversion.
C) Valid.
D) Invalid, illicit subcontrary.
E) Invalid, illicit subalternation.

Question

Quizplus · Accepted Answer

This is a valid statement as it follows the form of A-type proposition ("some A are B") and the subject term is distributed (antidepressants). The conclusion is also valid as it follows from the premise using the rule of existential import - if there are some antidepressants that are not safe for children, then it is true that some antidepressants are unsafe medications for children.

Some Antidepressants Are Not Safe Medications for Children