Consider this argument:If Jane likes Hugo, she will text him.She will text him.So, she likes him.This argument has the form "If P, then Q. Q. So, P". Which of the following is a counterexample clearly showing that this form is not deductively valid?

A. If the history books are right about his height, Lincoln was tall. Lincoln was tall. So the history books are right about his height.
B. If the history books are right about his height, Lincoln was tall. The history books are right about his height. So Lincoln was tall.
C. If Hilary Clinton is president, then someone is president. Someone is president. So Hilary Clinton is president.
D. If Hilary Clinton is president, someone is president. Hilary Clinton is president. So, someone is president.


Ans: C. If Hilary Clinton is president, then someone is president. Someone is president. So Hilary Clinton is president.

Philosophy & Belief

You might also like to view...

In focusing exclusively on negative freedom, we can easily

A) ?become emotionally negative. B) ?lose sight of what we want that freedom for. C) ?lose our religious faith. D) ?achieve happiness.

Philosophy & Belief

Explain the Buddhist concept of the "Middle Path."

What will be an ideal response?

Philosophy & Belief

Symbols that are said to involve a likeness to what they symbolize are referred to as:

a. sacraments b. metaphors c. signifiers d. synonyms

Philosophy & Belief

Existentialism emphasizes the free and conscious individual

a. True b. False

Philosophy & Belief