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example of logic

This tag is associated with 7 posts

Vonnegut Logic

No names have been changed in order to protect the innocent. Angels protect the innocent as a matter of Heavenly routine. -Kurt Vonnegut, Bagombo Snuff Box (1999) The writer is deciding whether or not to change the names of real-life people as he incorporates them into his story. He justifies his decision with his statement … Continue reading

Peter Parker Does Not Like People Looking At His Face. Because of Reasons.

Someone concealing their identity is doing it for nefarious reasons. Spiderman conceals his identity Therefore, Spiderman has nefarious reasons. As a syllogism, this is valid: A(someone concealing their identity) is(doing it because of) B(nefarious reasons) C(Spiderman) is A(someone concealing their identity) Therefore, C(Spiderman) is(doing it because of) B(nefarious reasons). However, this syllogism is not true, … Continue reading

She Turned Me Into a Newt!

    The peasants in this video believe the woman is a witch. Why? “She looks like one.” This, however, is not good enough for the knight, Sir Bedevere, a man of science. He proposes a simple way to determine her guilt. What do the people do with witches? Burn them. And what  burns, other … Continue reading

Hal Jordan Hates Lemonade

Hal Jordan cannot use his ring on anything coloured yellow. Some standard tennis balls are yellow. Hal Jordan cannot use his ring on some standard tennis balls. In this syllogism, the pattern of A(Hal Jordan’s ring) cannot be(used on) B(anything yellow) Some C(standard tennis balls) are B(yellow) A(Hal Jordan’s ring)  cannot be (used on) C( … Continue reading

The Hitchhikers Guide to a Logical Argument

Imagine walking along, minding your own business, and all of a sudden stopping dead in your tracks only to discover that you’ve come face to face with an angry beast on the hunt. If this just-so-happens to be a Ravenous Bugblatter Beast of Traal, there’s no reason to panic. That is, as long as you … Continue reading

Doctor Who and New York and Logic

I recently watched the season finale of one of my favourite television shows, Doctor Who. In this episode (spoilers ahead) The Doctor and his trusty companions, Amy and Rory, are separated permanently by a series of unfortunate events surrounding New York and a type of Alien called the Weeping Angels. Now I recognize most of … Continue reading

Introduction to Logic Blogging Assignments

Blogging Assignment for Logic Chapters For credit participants: Submit three different responses to the posts outlined below on the class blog. Open-online participants: Evaluate examples provided for Truth, Soundness, Validity and Reliability, comment, post examples of your own. Or lurk. That’s cool, too. Syllogism Create an original syllogism and identify its middle term, predicate term, and subject … Continue reading