Logical Fallacies

If we use just one more can of hairspray this month, earth as we know it will no longer exist.

• hasty generalization

• slippery slope

• red herring

• straw man

Why is this a logical fallacy? "All elephants are big. Some boys are big. Therefore some boys are elephants."

• It says A is true and B is true so A+B must be true.
• It oversimplifies.
• It only gives two choices to a larger problem.
• It says the two things always happen together.

Why is this a logical fallacy? "You can never give anyone a break. If you do, they'll walk all over you."

• It oversimplifies the problem.
• It leads to something that probably won't happen.
• It only gives two choices to a larger problem.
• It argues someone's an expert.

Why is this a logical fallacy?

• It only gives you two choices.
• It attacks Taylor Swift.
• It stereotypes singers.
• It says Taylor Swift is an expert on soda when she's a singer.

Why is this a logical fallacy?
"Don't listen to Mr. Fingers when he says walk in the hallways. How can you trust someone who wears bow ties?"

• It appeals to authority.
• It tells you to do something because it's popular.
• It attacks the person. 
• It gives you an unlikely outcome. 

Why is this a logical fallacy?
"Everyone should like coffee: 95% of teachers do!"

• It tells you to like something because a lot of people do.
• It simplifies the argument.
• It generalizes the argument. 
• It says A is true and B is true so A+B must be true.

Why is this a logical fallacy? "If a black cat crosses your path you will have bad luck." 

• It appeals to authority.
• It attacks the person.
• It oversimplifies
• It is a superstition. 

An opinion is 

• something that can be proven.
• always based on facts
• a view or judgement about something

An ad hominem attack

• is a very effective debate strategy
• goes after a person's argument.
• is always against a popular idea.
• is an attack on the person, not the argument 

 Teacher: If I let you go to the bathroom pretty soon everybody will want to go to the bathroom. This is an example of 

• Argument from Authority
• The Bandwagon Fallacy
• An Ad Hominem attack
• The Slippery Slope Fallacy