1 / 17

Syllogisms and Enthymemes

Syllogisms and Enthymemes. You be the judge. Directions. I will give you a statement. You identify it as a syllogism (S) or an enthymeme (E). If it is a syllogism, answer the following: 1) is it valid? 2) is it true?

jeanlee
Download Presentation

Syllogisms and Enthymemes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Syllogisms and Enthymemes You be the judge

  2. Directions • I will give you a statement. You identify it as a syllogism (S) or an enthymeme (E). • If it is a syllogism, answer the following: • 1) is it valid? • 2) is it true? • If it is an enthymeme, turn it into a syllogism, then answer the same two questions.

  3. Directions, cont. • Try drawing the syllogism with the circles, as you saw yesterday • We will do these one at a time on the white boards, then we’ll check the answers.

  4. Here we go: • Kara was dropped from the team because she didn’t maintain a “C” average.

  5. answers • Enthymeme • Students who do not maintain a minimum “C” average are not allowed to participate in school sports. • Kara did not maintain a “C” average. • Kara can not participate in school sports • True and valid

  6. All black animals are dogs • My animal is black • My animal is a dog

  7. Second one: • Syllogism • Not true (major premise) but valid.

  8. How about these? • I got a flat tire on my way to work this morning because I ran over a large, sharp rock in the roadway.

  9. answers • Enthymeme • Running over large, sharp rocks with your car will cause a flat tire. • I ran over a large, sharp rock. • I got a flat tire. • True, at least most of the time, and valid

  10. How about this one? • All freeway exit signs are green • Johnny’s hat is green • Johnny’s hat is a freeway exit sign

  11. answers • Syllogism • Not true, and not valid (minor premise does not match with the major premise)

  12. And again: • Barack Obama was elected president because he is black.

  13. answers • Enthymeme • All black people who run for office get elected • Barak Obama is black • Barak Obama got elected • It is not true (major premise) but it is valid

  14. You should be getting good at this • All GOHS varsity basketball players are over 5’11”. • Christian is 6’3” • Christian is a GOHS varsity basketball player

  15. Did you get it? • Syllogism • Not true and not valid (minor premise does not match major premise)

  16. One more • I don’t feel sorry for that homeless guy; he’s no doubt on drugs

  17. Check it out • Enthymeme • All homeless people are on drugs • That guy is homeless • That guy is on drugs • Not true (major premise) but valid

More Related