ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions...

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ECONOMICS PROJECT--- Fallacy of an theory

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Situation It was the time when the SARS was spreading in Hong Kong… The theory is: If one is infected by SARS, one will stay in the hospital.--- If A, then B In the statement, A is called the antecedent, while B is called the consequent.

Transcript of ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions...

Page 1: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

ECONOMICS PROJECT---

Fallacy of an theory

Page 2: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

What is a theory?• A theory is a set of definitions

postulates, test conditions and predictions logically organized to explain phenomena.

• It is an if- then statement. It explains and predicts that if the postulates and test conditions apply, then the predictions must happen.

Page 3: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

Situation• It was the time when the SARS was

spreading in Hong Kong…• The theory is:

If one is infected by SARS, one will stay in the hospital.--- If A, then B

In the statement, A is called the antecedent, while B is

called the consequent.

Page 4: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

Oh…if you have SARS, you should stay in the

hospital or others may be infected also.

Page 5: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

SO…There is a thinking…

Page 6: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

Don’t come near me. You have infected by SARS…You should stay in the hospital…

SARS patient!!!!

If A (antecedent), then B(consequent).

Page 7: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

HOWEVER…

Somebody have the following thinking…

Page 8: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

Oh…you are not infected by the SARS, you need not staying in

the hospital.

Not A(antecedent), not B(consequent).

patient catching a serious cold

Page 9: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

The monkey has committed the fallacy

of denying the antecedent.

Therefore, the thinking of Not A,

not B…is…

Although I don’t have SARS, I should stay in

the hospital since I have caught a serious

cold.

WRONG!!!!

Page 10: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

AND…Some people may think that…

Page 11: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

Oh!!!!…you are staying in the

hospital, you are infected by SARS.

If B(consequent), then A(antecedent).

You are in the hospital

ALSO!!!!

IN THE HOSPITAL…

100m

Page 12: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

The monkey has committed the

fallacy of affirming the consequent.

I am innocent… Staying in hospital does not mean that I

have infected by SARS… I have just given birth to babies…

WRONG!!!!

Therefore, the thinking of If B,

then A…is…

Page 13: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

Conclusion• Fallacy is an invalid reason that…

• Not A, Not B.If B, Then A.

WRONG!!!!WRONG!!!

!

With the statement given is:If A, Then B.

Page 14: ECONOMICS PROJECT--- Fallacy of an theory. What is a theory? A theory is a set of definitions postulates, test conditions and predictions logically organized.

THE END

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6A• Sharon Pang (18)• Tiffany Wong (27)• Carmen Yeung (28)