Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
![](https://s.yimg.com/ag/images/default_user_profile_pic_192sq.jpg)
Lv 2401 points
Arolena
Favorite Answers36%
Answers11
Symbolic Logic Problem?
I am given one premise to try and find the goal.
Premise: ((P & (Q > R)) > S)
Goal: (~P v (Q v S))
I can only use:
Conjunction Introduction
Disjunction Introduction
Conditional Introduction
Conjunction Elimination
Disjunction Elimination
Conditional Elimination
Falsum Introduction
Negation Introduction
Negation Elimination
Any help would be appreciated.
1 AnswerPhilosophy8 years ago