Wednesday, January 23, 2019

cause and effect for exam 1

1. A causes B (direct causation). if A is necessary and sufficient for B, meaning A precedes B and A guarantees B. Ex: The pool stick striking the billiard ball causing it to jump. 
2. A & B & C cause D (contributory causes): if A & B & C, are contributory, they are co-occurrent causes. therefore, for the specific effect, a contributory cause is neither necessary nor sufficient for the effect (because it is by definition accompanied by other causes). 
3. correlation is not sufficient for causation.

Ex: If Pluto's barking causes Dick to wake up, 
 
Pluto's barking is a necessary cause of Dick's waking up if the barking precedes the waking, but it doesn't imply the latter will occur, i.e., Dick may not wake up (it's not guaranteed).      

Pluto's barking is a sufficient cause of Dick's waking up if the the barking guarantees the waking, although a another cause may also contribute to Dick's waking (noise coming from the bathroom where Dick's wife was taking a shower). here the presence of the waking doesn't guarantee the prior occurrence of the barking.

Wednesday, January 16, 2019

questionnaire on fallacies

Below, identify the following fallacies (based on this post)

1. Thomas Elder attack on social welfare should not be taken seriously. He is said to have been a degenerate.

2. You will get pregnant if you have sex. Sally had sex once, and now she is pregnant. 

3. Your honor, the defendant must be guilty because no one can prove his innocence. 

4. Rare taste: you either have taste or you don't. 

5. Men are all alike: selfish creatures who spend every weekend glued to a television tube. 

6. I am sure that you will agree that we should all work together to increase the profit of this company. Anyone not agreeing with this policy will be fired immediately.  

7. Everyone believes that Lander University is improving its academic programs yearly; therefore, I conclude that Lander will be a much higher rated school several years from now. 

8. Theodore Teabody, the great historian, says that H. Beard's book is the best logic book in the world. I believe him since the word of such a great man shouldn't be disputed. 

questions about values

1. as per values, which secondary value do you find more important?
2. as per religious and spiritual values, do you find a lack of some of these values today? why do you think?
3- what does it mean to say that correlation doesn't imply causation?

questions about cause and effect?

1. are you surprised that most causes are not direct? could you give an example of your own of a cause you thought it was direct and it is not?
2. what difference do you think it would made (for human responsibility) if some of the causes you took to be "direct" are really "indirect" or "contributory"? 
3. has this discussion of cause-and-effect made you reevaluate "received" ideas of causation in the media, or from yourself? can you offer an example?

Homework #2 (deduction and induction)



Are these deductive or inductive?

1. The sum of the interior angles of any triangle is 180°. In triangle #1, angle A is 30°, angle B is 90°. Therefore, angle C is 60°. 
2. If I get an A, then I will pass this course. Odds are, I will make a B. So, I probably won't pass this course. 
3. The platypus is not a mammal (google & find out) because no mammal lays eggs, and the female platypus does.
4. The last time I ate here, the shrimp dish I ordered was disgusting. It must be the case that this restaurant buys lousy seafood. 
5. The sign on the candy machine reads "Out of Order." The candy machine must be broken. 

are these valid or invalid? 

1. If it rained, the streets are wet. The streets are wet, so it must have rained. 
2. If Richard Roe is willing to testify then he's innocent. He's not willing to testify therefore he's not innocent. 
3. If Bogotá is north of New Orleans and New Orleans is north of Mexico City, then Bogota is north of Mexico City. 

are these strong or weak? 

4. Every day you've lived has been followed by another day in which you've been alive. Therefore, everyday you ever will live will be followed by another day in which you are alive. 
5. Nobel prize-winning biologist Herbert Ralls says that chlorinated hydrocarbons in our water supply constitute a major threat to the public health. Since no scientists disagree with him on this point. Accordingly, we conclude that the presence of these chemicals is a threat.
6. Every day you've ever lived has been a day before tomorrow, so, every day you will ever live will be a day before tomorrow. 

Thursday, January 10, 2019

Triff's office hours

M,W,F, 8-9:50am
T,R, 8-11am
T, 3:30-5:30pm (let me know via email you're coming for this slot)
W, 4-5:30pm (let me know via email if you're coming for this slot)

Monday, January 7, 2019

axiology & the importance of values

imagine a world without values? without right, wrong, good, bad, beautiful, ugly, pleasant, nice, hateful, etc?

the branch of philosophy that studies value is axiology (from the Greek axios meaning "worth").

aesthetic values: depending the capacity to elicit pleasure (positive value) or displeasure (negative value) when appreciated or experienced aesthetically. examples: beauty, ugliness, elegance, taste, harmony, token: beauty,

economic values: (we are homo economicus): the measure here is efficiency, affordability & productivity (productivity = output volume/ labor input), then, practicality, token: price,

social/cultural values: the measure is how humans live in groups and which traits are seen as worth having, such as honor, honesty, valor, sympathy, benevolence, gratitude; token: sociability,

political values: these are traits that balance power with justice, such as influence, leadership, competitiveness; token: fairness,

religious values: these are values that are associated with purposefulness, worship and rituals, such as faithfulness, altruism, unity, token: holiness, 

spiritual values: values that are meant to strengthen the inner self, such as freedom, achievement, , simplicity, health, vigor; token: blessedness,

how to argue your point (in philosophy)

1. Discussion is a civilized enterprise between two (or more). One talks one listens.
2. Be always prepared.
3. DO NOT talk on top of your interlocutor. Wait until they finish their point. expect the same, if they interrupt you politely say: "Excuse me, I'm not finished."
4. DO NOT EVER raise your voice (it shows you're emotionally invested making your argument weak).
5. DO NOT hurry, avoid speaking fast. you need to be in command of your thoughts. take your time to answer back; be deliberate and in control.
6. If there's room for agreement, say: "I agree," or "That's a good point." it makes your interlocutor feel comfortable, which is always good for you.  
7. Be generous (even if you're winning). how? give a point if you can, for ex. "You're right about that."
8. Be affable throughout the exchange. smile if there's a chance (there always is). affability shows you're ease which shows open mindedness, a great trait of character.
9. The discussion doesn't have to be won. not in one meeting. you can say "we should continue this at some other time."