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#RealLife non-math example that illustrates why function composition is not commutative. #MTBoS #ITeachMath

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Tim Brzezinski

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27,011 次观看 • 3 年前 •via X (Twitter)

#RealLife#MTBoS#ITeachMath
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5 条评论

Dan Schroeder 的头像
Dan Schroeder3 年前

@a_freeparticle When I was in grad school one of my housemates (a math student) was once sitting at the dinner table when he lifted the bottle of salad dressing, paused, and said: "The operations of shaking the bottle and removing the cap do not commute."

Muhammad Fahad 的头像
Muhammad Fahad3 年前

Nice 👍

Tim Brzezinski 的头像
Tim Brzezinski3 年前

Thank you! 🙂

EmacsTheViking 的头像
EmacsTheViking3 年前

Finally I get why a monad is not a burrito!!! It's because all this time it was actually a laundrette, and the identity function is putting dry, dirty clothes into the dryer. No wonder I didn't get Haskell sooner. Thanks for this.

chrïs 的头像
chrïs3 年前

depends on the property for example, if the property is colour then the output is invariant to composition.

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