Tag Archives: proofs

Potatoes are made of ducks

Recently at the Girls’ Angle Club, we mentioned that from a contradiction, one can prove anything. One of our members, Barry Allen (pseudonym!), challenged us to prove that potatoes are made of ducks given that potatoes are made of wood. So … Continue reading

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Postulates, Proofs, and Obviousness

This is a response to the following question posted by fiftyducklings as a comment to Fraction Satisfaction: In geometry, we learned things like “segment addition postulate” and “area addition postulate,” which were pretty intuitive statements. But then I looked at … Continue reading

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