Proper logic states
A) all valid arguments are sound arguments.
B) all sound arguments are valid arguments.
C) a sound argument may have a false conclusion.
D) a sound argument may have a false premise.

Question

Quizplus · Accepted Answer

A sound argument is one that is valid and has all true premises, which means that the conclusion must also be true. Therefore, all sound arguments must be valid. However, a valid argument may not necessarily be sound if it has at least one false premise, even if the conclusion follows logically from those premises. Therefore, not all valid arguments are sound arguments. A sound argument, by definition, cannot have a false conclusion, so option C is incorrect. Option D is also incorrect because a sound argument, by definition, must have all true premises.

Proper Logic States