Introduction to PhilosophyNotesThis is not a substitute for coming to class Richard Lee
Philosophy 2003 C 001Copyright © 1999, Richard Lee Spring 1999
 

The (Logical) Problem of Evil: Flow of the argument:

9.There is evil. [(1) & (2) modus ponens]
10.If God is all powerful, then God is able to prevent the existence of all evil. [(6) & (7) pure hypothetical syllogism]
11.God does not prevent the existence of all evil. [(8) & (9) modus tollens]
12.If God exists, then God is able to prevent the existence of all evil. [(3) & (10) pure hypothetical syllogism]
13.If God exists, then if God is able to prevent the existence of all evil, then God does prevent the existence of all evil. [(4) & (5) pure hypothetical syllogism]
14.If God exists, then God does prevent the existence of all evil. [(12) & (13) unnamed valid argument form: If p, then q; If p, then if q, then r; Therefore, if p, then r.]
C.It is not the case that God exists. [(14) & (11) modus tollens]


Richard Lee, rlee@comp.uark.edu, last modified: 12 February 1999