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# Problem - PowerPoint PPT Presentation

Problem. All As are B If I can do X, then I can find an A which is not a B Consider these two statements. Can they both be true at once? If so, how?. Problem. All G11 students at East are in white shirts

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• All As are B

• If I can do X, then I can find an A which is not a B

Consider these two statements. Can they both be true at once? If so, how?

• All G11 students at East are in white shirts

• If I can take a picture of a G11 student who is in a blue shirt, then I have found a G11 student who is not wearing a white shirt

• All As are B

• If I can do X, then I can find an A which is not a B

So, if 1 and 2 are known to be true, it cannot be possible for me to do X; that is, X is impossible.

• All As are B

• If I can do X, then I can find an A which is not a B

So, if 1 and 2 are known to be true, it cannot be possible for me to do X; that is, X is impossible.

• All elliptic curves are modular

• If I can find a solution to FLT, then I can find an elliptic curve which is not modular.

So, if 1 (Taniyama-Shimura conjecture) and 2 (Fry’s e-conjecture) are true, then

• All elliptic curves are modular

• If I can find a solution to FLT, then I can find an elliptic curve which is not modular.

So, if 1 (Taniyama-Shimura conjecture) and 2 (Fry’s e-conjecture) are true, then it must be impossible to find a solution to FLT