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Week 2 Philosoophy

by: Jonathan Notetaker

Week 2 Philosoophy PHL-101-01

Jonathan Notetaker

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About this Document

These notes cover what exactly makes an argument valid and how an argument has to follow its conclusion
Intro to Logic
Dr. Di Fate
Class Notes
philosophy, logic
25 ?




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This 2 page Class Notes was uploaded by Jonathan Notetaker on Tuesday September 13, 2016. The Class Notes belongs to PHL-101-01 at Spring Hill College taught by Dr. Di Fate in Fall 2016. Since its upload, it has received 2 views. For similar materials see Intro to Logic in Philosophy at Spring Hill College.


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Date Created: 09/13/16
Symbolization - Operators= those that connect sentences except tilde o . (dot)= and- is used as a conjunction o V (vee)= p or q or both- used as inclusive disjunction o -> (arrow)= if p then q- used as conditional o <-> (double arrow)- p if and only q- used as bi conditional o Tilde- not the case that- used as a negation - Sentential Constants= stand for sentences without operator - Sentential Variable= stand for any sentence - Use parentheses, brackets, and braces o In order to group thing in to twos which they must always be - Constants are always affirmative - Specialties o When “if” is in the middle of a sentence, move the second phrase to the front during symbolization and put the arrow after it o “only if”= -> The Arrow - If p, then q (standard) - Assuming p, q - Q assuming p - Given p, q - Q given p - Granted that p, q - Q granted that p - Provided that p. q - Q provided that p - Q if p - P only if q - P is a sufficient condition for q - Q is a necessary condition for p The V - P or q or both (standard - P unless q The Dot - P and q (standard) - P, q - P but q - P although q - While p, q - P, however q - P yet q - P nevertheless q - P though q - Q if p Double Arrow - p if and only if q - p is a necessary and sufficient condition for q


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