PHIL 105 Midterm: Study Material for Midterm#2 - Part Notes summary (weeks 7 - 9#1)

• School: Simon Fraser University
• Department: Philosophy
• Course: PHIL 105
• Professor: Ian Chunn

Document Summary

Deductively sound argument = valid + true premises. Deductively strong argument = valid + premises are reasonable for me to believe. *deductive strength can vary from person to person (depends on person"s evidence) Make argument well-formed, undefeated, and with reasonable premises. Add premises that are consistent with the intentions of the author. Providing a narrow when a wider one is true usually distorts the argument. Implicit premises should be reasonable to accept. * valid w/ rsnbl premises > cogent w/ rsnbl premises > valid w/ less rsnbl premises. Every line in an argument must be one of three things: explicit premise implicit premise. 2: alleged to follow from other premises = a conclusion (that"s either explicit or implicit) Final conclusions (ec or ic) and sub-conclusions (ep or ip) justifications include the numbers of the lines from which they follow. *if it"s unclear use a question mark i. e. changed wording to make argument well formed.