What is the dif b/w a deductive argument and an inductive argument? What are several ways to defeat an argument? Symbolize a
modus ponens, a modus tolens, and a hypothetical syllogism.
 Deductive  an argument that is supposed to give logically conclusive support to its conclusion
 Valid – logical support for conclusion
 Invalid if not
 Sound – also true premises

 Inductive  an argument that does not offer
 logically conclusive support for the conclusion
 Strong – probable support for conclusion
 Cogent – premises also true

 Modus ponenes – if p = q, p… then q
 Modus tolens – if p=q, not q therefore not p
 Hypothetical syllogism – if p=q, q=r, then p=r