MATH15Amidtermsol

MATH15Amidtermsol - Name (Last, First) SOLUTIONS Please...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Name (Last, First) SOLUTIONS Please circle your section: A01 A02 A03 A04 5 PM 6 PM 7 PM 8 PM Math 15A Midterm Briggs Fall Quarter 2004 No books, notes, calculators, or any unauthorized assistance is permitted on this exam. Read each question carefully, answer each question completely, and show all of your work. Write your solutions clearly and legibly; no credit will be given for illegible solutions. To receive full credit on your proofs, please comply with the writing guidelines as discussed in class. If a question is not clear, ask for clarification. GOOD LUCK! 1. ( 15 points ) Determine whether the following argument is valid. P ( Q R ) P Q R Q Q Solution: An argument form is valid provided that the truth of the premises guarantee the truth of the conclusion. We see in the following truth table for the given argument form, there are four cases in which all three premises are true, denoted by critical row. Because there are instances in which all three premises are true and the conclusion is false, the argument is INVALID. premise premise premise conclusion P Q R Q R Q P ( Q R ) P Q Q T T T F T T T T T T F F T T T T T F T T T T T F T F F T F F T F F T T F T T F T F T F F T T F T F F T T T T T F F F F T F T T F - critical row - critical row - critical row - critical row 2. (2....
View Full Document

Page1 / 5

MATH15Amidtermsol - Name (Last, First) SOLUTIONS Please...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online