Logic lecture 8

We did problems 18, 20, 22, 24, 28, 32, 34, and 38 in exercise 8F section IV for test 3. The rest of the class we discussed Quantification. https://youtu.be/xu7s8GaxLGU is the video

Logic lecture 7

This evening we spent most of the time on proofs after going over the rest of the inference rules and replacement rules. There were two quiz questions this evening. The first was do you think God has to be logical? The second was to do problem 11 in exercise 8F section IV. Keep in mind that next week the last part of class will be test 3 based on that exercise.

Logic Lecture 6

This evening we continued to work on symbolic logic. There were two quiz questions. The first was what do you think of relativity? (This comes up regarding the postmodern view that statements and their contradictions can both be believed provided it is recognized that they are true in different linguistic contexts. I used Slavoj Zizek as an example. It is the main reason I think Americans have trouble understanding modern Europeans. The second quiz question was to do problem 8 on page 391. I did make a video of the first part of this evening's lecture. You may find this presentation on relativism interesting: https://www.youtube.com/watch?v=TmYndY0p058

Logic lecture 5

This evening we practiced some syllogisms and went over the rules, and then took the second test. Those that needed more time took them home to work on some more. There was no quiz question since there was a test in class. The remaining portion of the evening we began looking at symbolic logic. No video of class this evening! I did not bring the camera with me. But just going over syllogisms would be a great way to cover what we did in class. Remember also that next week is the July 4th holiday so we do not have class Monday evening. THe syllogisms for test 2 are: 1. EAO-3 2. OAO-2 3. IOO-1 4. AAA-2 5. EIO-4 6. EAO-2 7. EEA-3 8. OIO-2 9. AII-1 10. AAA-1 For each expand them using S, M, and P for the terms, give a Venn diagram, determine if it is valid or invalid, and if it is invalid give the rules broken.

Logic Lecture 4

In class this evening we finished up chapter 5 in the first half and started syllogisms in the second half. So for today the first quiz question is if the A statement "All cowboy hats are smaller than Mexican Sombreros" is true, what would be the truth value of the three other statements on the Traditional Square of Opposition? The second quiz question is, is the syllogism OOO-4 valid or invalid?

Logic Third Class summer session

Tonight we cover Fallacies - and following several studies will treat them as similar to jokes, though clearly not all fallacies are jokes. But the comparison is helpful. Notice Daniel Dennett's treatment of them in his book Inside Jokes. I will play his TED talk as well. So the first quiz question for the first half is do you agree with this comparison of humor to fallacious reasoning? For the second half of the evening we begin covering the Aristotelian system beginning with standard form propositions. If we can we might go on to do some syllogisms. So the quiz question for the second portion is determine if the syllogism EIO-2 is valid or not and give an example.

Logic second class summer session

This evening was our second meeting for Introduction to Logic for the summer session. We covered the chapters up to the beginning of chapter 4 which begins the topic of fallacies. There were two quiz questions. The first was to discuss how objective or subjective you think this article is. The second quiz question is for you to select your favorite comedian and post a link to one of his or her skits on youtube and analyse what sort of fallacy seems to be the pattern the comedian uses in their jokes. For example Eddie Izzard who I think uses amphiboly a lot.