Given the argument: S ⊃ E / N ⊃ (∼ S ⊃ E) // N ⊃ E
This argument is:
A) Invalid; fails in 5th line.
B) Invalid; fails in 6th line.
C) Valid.
D) Invalid; fails in 2nd line.
E) Invalid; fails in 3rd line.

Question

Quizplus · Accepted Answer

The argument is valid. It is a case of hypothetical syllogism where the first premise is S ⊃ E and the second premise is ∼ S ⊃ E. From these two premises, we can conclude that N ⊃ E using hypothetical syllogism. The argument is logically correct and valid. There are no errors or fallacies in the reasoning.

Given the Argument: S ⊃ E / N ⊃ (∼