lect02 - 1 1 INTRO LOGIC DAY 02 2 Schedule for Unit 1 Intro...

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Unformatted text preview: 1 1 INTRO LOGIC DAY 02 2 Schedule for Unit 1 Intro Day 1 Chapter 4 Day 7 EXAM #1 Day 8 Chapter 4 Day 6 Chapter 4 Day 5 Chapter 3 Day 4 Chapter 2 Day 3 Chapter 1 Day 2 40% of Exam 1 60% of Exam 1 warm-up 2 3 Chapter 1 Basic Concepts 4 What is logic? Logic is the science of reasoning , which is to say: the academic discipline that investigates reasoning. 3 5 What is reasoning? reasoning is inferring ( deducing ) to infer is to draw conclusions (output) from premises (input). 6 Aside words/ideas related to ‘ draw ’ both words mean to pull an often used cognate of ‘ draw ’ is ‘ draft ’ (‘ draught ’) 4 7 examples of ‘draw’ and ‘draft’ (‘draught’) draw conclusions from premises draw a picture draw a drape draw a blank draw water dresser drawer lottery drawing drawn to ... draw your gun draw a deep breath drawn and quartered (ouch!) draft horse draft beer drafts“man” military draft sports draft bank draft (over-draft protection) first draft, second draft, etc. drafting in car racing draft in house (air being pulled through) chimney draft draft of a boat (how deep it sits in the water) 8 5 9 Examples of Reasoning You see smoke, (input) and you infer ( deduce ) that there is fire. (output) You count 19 in a group, (input) which originally had 20, (input) and you infer ( deduce ) that someone is missing. (output) 10 Basic Idea Logic evaluates reasoning in terms of arguments . 6...
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lect02 - 1 1 INTRO LOGIC DAY 02 2 Schedule for Unit 1 Intro...

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