PHI 1101 Lecture Notes - Lecture 1: Principle Of Bivalence

• School: University of Ottawa
• Department: Philosophy
• Course: PHI 1101
• Professor: Laura Byrne

Document Summary

Readings to do: unit two: definitions - begin w/ republic, then chapter 2. Unit 1: reasoning and critical thinking part 1. Basic concepts of critical thinking - think toolbox. Find the truth by means of reasoned investigation. Innate concepts - logic does not insert new information, clarifies that which we already know. Most basic concept of ct is a statement. Definition: statement = sentence used to make a claim. Statements are capable of being either t/f. (b/c they make a claim) Logic also calls them assertions or propositions. Property of being t/f distinguished statements from sentences (read: the truth about pyecraft - h. g. Statements are a subset of sentences that logic concerns itself with. Something to keep in mind: when you hear hoofbeats think horses before you think zebras. Two laws of logic (fundamental: the law of non-contradiction, the law of bivalence or the law of the excluded middle. For sake of clarity + brevity logicians rep statements w/ symbols.