Argue Like a Philosopher

Argue like a Philosopher!

We are Going to Review what we learned!

Deductive and Inductive Reasoning

Deductive Reasoning

Deductive arguments are supposed to be set in stone. For a deductive argument to be a good one, it must be absolutely impossible for both its premises to be true and its conclusion to be false.

Multiple Choice

What are deductive reasonings made up of?

• Premise #1

  Premise #2

  Conclusion

• Claim

  Claim

  Claim

• Premise #1

  Conclusion

• Conclusion only

Deductive Reasoning Cont'd

Deductive reasoning can include as many premise as you want, as long as they all are true for the same conclusion.

Example:

All dogs have four legs,

John's pet is a dog,

therefore John's pet has four legs

Open Ended

Write an example of Deductive reasoning here:

Premise #1 = 

Premise #2 = 

Conclusion = 

Multiple Choice

Are all deductive reasonings automatically correct?

• Yes

• No

Bad Examples

A dog is a mammal

Keirdan is a mammal

Therefor, Keirdan is a dog.

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Keirdan is a girl

Keirdan plays basketball

Therefor, all girls play basketball.

Open Ended

Write a bad example of deductive reasoning here:

Premise #1 = 

Premise #2 = 

Conclusion = 

Inductive Reasoning

Using past experiences to make future predictions. This does not provide certainty, but a guess.

Watch this video

You only need to watch the first 4 minutes, but if you enjoy it feel free to watch the entire thing.

​https://www.youtube.com/watch?v=-wrCpLJ1XAw&list=PLUHoo4L8qXthO958RfdrAL8XAHvk5xuu9&index=3&ab_channel=CrashCourse

Multiple Choice

What are inductive reasonings made up of?

• Premise #1

  Premise #2

  Conclusion

• Claim

  Claim

  Claim

• Previous experience #1

  Conclusion

• Conclusion only

Inductive Reasoning Cont'd

Keirdan is in the car.

Keirdan takes a car to basketball practice.

Keirdan has basketball practice every Tuesday at 4:00

It is Tuesday and almost 4:00

Therefor, Keirdan is on her way to basketball practice.

Open Ended

Write an example of Inductive reasoning here:

Past experience #1:

Conclusion:

Multiple Choice

Are all inductive reasonings automatically correct?

• Yes

• No

Bad Example

Kraft dinner is my favourite food.

Therefor, Kraft Dinner will always be my favourite food.

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My sister isn't good at basketball,

Therefor, girls are not good at basketball.

Open Ended

Write a bad example of inductive reasoning here:

Watch This Video

This will recap everything we learned!

​https://www.youtube.com/watch?v=NKEhdsnKKHs&ab_channel=CrashCourse