# Phil. 103: Introduction to Logic Quiz 3: Truth, Validity, and Soundness

Directions:
Carefully study statements 1-10 Decide whether each statement is true or false and write in the spaces provided the word ``true'' or the work ``false'' in accordance with your decision.

1. __________________________ A sound argument is a valid deductive argument with true premisses.
2. __________________________ All valid deductive arguments are sound arguments.
3. __________________________A deductive argument cannot be both valid and unsound.
4. __________________________An invalid deductive argument could have all true statements in it.
5. __________________________In a valid deductive argument the conclusion could be true or false.
6. __________________________A deductive argument could have a false premiss and still be sound.
7. __________________________If a deductive argument is sound, then the conclusion must be true.
8. __________________________When the premisses of a deductive argument are true, the conclusion is always true as well.
9. __________________________When the conclusion of a deductive argument is true, the argument must be sound.
10. __________________________A deductive argument can be either valid or invalid and still have true premisses.

NAME ____________________________________________________

Phil. 103: Introduction to Logic
Quiz 3: Truth, Validity, and Soundness

This document was generated using the LaTeX2HTML translator Version 2K.1beta (1.48)

Copyright © 1993, 1994, 1995, 1996, Nikos Drakos, Computer Based Learning Unit, University of Leeds.
Copyright © 1997, 1998, 1999, Ross Moore, Mathematics Department, Macquarie University, Sydney.

The command line arguments were:
latex2html tvsf02q.tex -split 0

The translation was initiated by Lee Archie on 2002-11-17

Lee Archie 2002-11-17