Register - Log In
 FunTrivia Homepage New Questions Unanswered Post a Question Goto Qn # Archives

# What is the law of syllogism?

Question #100192. Asked by mushu-scooby. (Oct 13 08 6:30 PM)

author

Syllogism is deduction.

Two propositions (sentences affirming or denying something), called "major premise" and "minor premise", are followed by a conclusion.

[change] Example

1. Man is a rational animal (major premise)
2. Aristotle is a man (minor premise)
3. Aristotle is a rational animal (conclusion).

Aristotle studied different syllogisms and identified valid syllogisms as syllogisms with conclusion true if both premises are true. The example above is valid syllogism.
Retrieved from "http://simple.wikipedia.org/wiki/Syllogism"

http://simple.wikipedia.org/wiki/Syllogism

 Oct 13 08, 6:49 PM
Baloo55th

You do have to be careful with it, though:
1. Dogs have four paws.
2. Tiddles has four paws.
3. Therefore, Tiddles is a dog.

Miaaoooouuuuuwwwwwww!

 Oct 14 08, 6:17 AM
looney_tunes

A valid syllogism is best identified if the premises are rephrased into implications. A valid syllogism has the structure:
A implies B; B implies C; Therefore A implies C.

Restating Author's example, you have Aristotle implies man; Man implies rational animal; Therefore Aristotle is a rational animal.
Baloo's has the form A implies B; C implies B; from this start no valid conclusion can be drawn about a relationship between A and C.

 Oct 14 08, 1:40 PM
Baloo55th

It's actually based on one of Lewis Carroll's. For more: http://www.lewiscarroll.org/logic.html

 Oct 14 08, 2:22 PM
looney_tunes

The link provided to Lewis Carrol's logic puzzles has further links that explain the logic notation I yused above, as well as another to another technique: "A much easier way to do it, however, once you get the hang of the notation, is the Sommers-Englebretsen term logic," which looks more like algebra than traditional logic.

 Oct 15 08, 1:59 AM

Find something useful here? Please help us spread the word about FunTrivia. Recommend this page below!

 Sign up to see all responses! Create a Free ID instantly to see all recent responses, post your own follow-ups or questions, and access over 1,000,000 trivia questions! Choose a User Name: Your Email Address: Choose a Password: I agree by the terms outlined in FunTrivia's Conditions of Use

### Other Similar Questions & Answers

 What art term has been described as deriving from either a Portuguese word for an "abnormal" irregularly shaped pearl, or from an Italian word for an "abnormal" weak syllogism?

### Suggested Related FunTrivia Quizzes - 90,000 currently online

1 The Law
 How much do you know about the Jewish law as described in the first five books of the Bible? Don't worry; it's not too obscure.
Torah/Pentateuch Mixture Tough
10 Q
skylarb
Aug 28 03
2271 plays
2 "Marshall Law"
 The new drama series on Channel Seven is "Marshall Law". If you've got the wit, knowledge and cunning edge your ready to take my quiz!
Marshall Law Tough
10 Q
wilkda
Sep 17 02
144 plays
3 Mother-In-Law
 They are the most evil people in any television show. They may not haunt people as much in real life, but in television, mothers-in-law make character's life a living nightmare!
Characters and Actors Difficult
10 Q
Lagunathemoron
Jan 26 04
555 plays

"Ask FunTrivia" is for entertainment purposes only, and answers offered are unverified and unchecked by FunTrivia. We cannot guarantee the accuracy or veracity of ANY statement posted. Feel free to post an updated response if you feel that an answer is inadequate or incorrect. Please thoroughly research items where accuracy is important to you using multiple reliable sources. By accessing our website, you agree to be bound by our terms of service.