1 / 6

Using the Law of Syllogism

Using the Law of Syllogism. With tricky puzzles!. 1 rule:. Since the CONTRAPOSITVE only statement that is guaranteed to be true if the conditional is true, try rewriting the statements in the contrapositive. Think of this like dominos—the ends must match up. Example.

jermaine-burke
Download Presentation

Using the Law of Syllogism

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. Using the Law of Syllogism With tricky puzzles!

  2. 1 rule: • Since the CONTRAPOSITVE only statement that is guaranteed to be true if the conditional is true, try rewriting the statements in the contrapositive. • Think of this like dominos—the ends must match up.

  3. Example • xy, t~y, ~t~q • ~y~x, y~t, qt • First write the contrapositive of each statement. • Second, circle the statements you will use. • Then write in order: • xy, y~t, ~t~q, therefore xq

  4. Example—more difficult! • tq, ~d~q, ~be, d~e, b~a • ~q~t, qd, ~eb, e~d, ab • Write all the contrapositives • Circle the matches • Order Solution: a~b, ~be, e~d, ~d~q, ~qt Therefore: at

  5. Examples • sa, ~cl, h~i, ci, a~l • yt, e~g, ~re, r~t • Ps, in, ~pa, a~n

  6. Solutions • H~i, ~i~c, ~cl, l~a, ~a~s (H~S) • G~e, ~er, r~t, ~t~y (G~Y) • ~s~p, ~pa, a~n, ~n~I (~S~i)

More Related