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Logical fallacies

Published on Feb 06, 2016

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1.

Logical fallacies

"Your logic is illogical."
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2.

Slippery Slope

You jump to the worst case scenario
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3.

"If you don't allow students to use their phones in class, they wouldn't be able to contact their parents or 911 in an emergency."

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4.

"Don't wake up in a roadside ditch; get rid of cable and switch to Direct TV."

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5.

Strawman

You twist someone's argument to make it easier to attack
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6.

Student: "You should buy us pizza."
Teacher: "No."
Student: "I can't believe you want us to starve!"

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7.

Politician: "We should regulate CO2 emissions from cars."
Opponent: "We can't get rid of cars! How would people get to work?"

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8.

Red Herring

distracts from the real issue
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9.

Student: "Why should I study math? I don't want to be a math teacher."

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10.

Ms. Ellsberry: "okay. 10 minutes for journals."
Beeby: "Wait. You don't have internet?"

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11.

Ad hominem

"mudslinging" or opponent bashing
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Politician: My opponent is a liar! He cheated on his sat!

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13.

ad populum

"bandwagon"
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Politician: "75% of Americans want to raise the minimum wage."

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15.

Hasty generalization

making assumptions based on too little info
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"I didn't like Romeo and Juliet in 9th grade and my brother didn't like Hamlet. All Shakespeare must suck."

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post hoc, Ergo Propter hoc

Because B comes after A, A must cause B
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"President Jones raised taxes, and then crime rates increased. Jones is responsible for the rise in crime."

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19.

"President Jones raised taxes, and then crime rates increased. Jones is responsible for the rise in crime."

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20.

false dichotomy

giving only two options when there are really more
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21.

"Caldwell Hall is in bad shape. Either we tear it down and build a new hall or we put students' safety at risk."

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22.

Anecdotal evidence

Using a personal story to prove a point
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23.

My brother bought a ford and had to replace the transmission and battery within four years. Ford vehicles are poorly constructed. Don't buy!

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24.

Untitled Slide

Kati Ellsberry