Beyond infinity an expedition to the outer limits of the mathematical universe
Rating:
8,3/10
501
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If you have a bag of all the real numbers and take real numbers out one at a time, in whatever order, I can build a real number in fact many real numbers as you do this which you will probably never draw out of the bag. Eugenia Cheng likes to play with infinity. So any trolls aren't being drawn by the chance of 60seconds of fame by the hordes of other people here. Eugenia Cheng continues her crusade against mathphobia. I know that I have the same number of fingers as toes because I can pair them up with none left over.

Truth and knowledge come in multiple forms: colorful drawings, encouraging jokes, and the stories and insights of an empathetic teacher who believes that math should belong to everyone. To properly define infinity she has to define the cardinality of the natural numbers, and thus also the definition of the latter. How does infinity give Zeno's tortoise the edge in a paradoxical foot-race with Achilles? I'm sorry to be the one to have to tell you, but yes, you are fat. Beyond Infinity is a great read overall. Also, probably not for audioformat, I can't immediately get the English terms for math symbols, probably would have been better in text. Math belongs to the math realm not to shitty philosophies. Cantor also proved that the set of real numbers all the finite and infinite decimal numbers e.

Are they larger or smaller than each other? Eugenia Cheng is a professor of mathematics whose research field is higher dimensional category theory. There are to day a lot of good popular books about mathematics that those of some age and fond of maths would like have read when young,this one is one of theese books. It was also weirdly philosophical. She concludes part one by showing that different infinities are larger than others and differentiating between ordinal and cardinal numbers. How does infinity give Zeno's tortoise the edge in a paradoxical foot-race with Achilles? What would you call it? She explains why it is not a number and goes through the steps that led to that conclusion.

How does infinity give Zeno's tortoise the edge in a paradoxical foot-race with Achilles? Among her favorite mind-boggling conundrums: If she were immortal, she could procrastinate forever. I ended up just skimming the entire back half of the book. The premise of this book sounded interesting to me. I loved algebra growing up, and I have fond memories of a friend of my mom who used to print off algebra equations for me to do while I was waiting for my mom to get off work. Chubby trolls are very territorial and your common internet troll is surrounded by it's kin, so when the food supply is threatened or sparse they turn on one another in a horrifying display.

That requires to consider the infinitely small, which leads to infinitesimals that form the onset of calculus. Here of course Chen is still Chen and she still can't hide her love for cooking and category theory. Also, Cantor considered the obvious question: is there an intermediate infinity strictly between the infinity of the natural numbers and the infinity of the real numbers in size? Overall a good introduction to infinity. This is key to answering the question about infinities. I decided Mickey Mouse would make a fine 8-bit programmer.

Musician, chef, and mathematician Eugenia Cheng has some answers. Industry Reviews Clear, clever and friendly -- Alex Bellos A spirited and friendly guide - appealingly down to earth about math that's extremely far out -- Jordan Ellenberg, author of How Not to Be Wrong Witty, charming, and crystal clear. Are they larger or smaller than each other? The video shows the lengths mathematicians have gone to try to resolve this issue. Along the way she considers weighty questions like why some numbers are uncountable or why infinity plus one is not the same as one plus infinity. How many numbers are there? Although perhaps too many of the authors examples have to do with food. Infinite amount of people, infinite amount of rooms, all have a room, but now room 1 is free.

Wielding an armoury of inventive, intuitive metaphor, Cheng draws beginners and enthusiasts alike into the heart of this mysterious, powerful concept to reveal fundamental truths about mathematics, all the way from the infinitely large down to the infinitely small. She was educated at the University of Cambridge and did post-doctoral work at the Universities of Cambridge, Chicago and Nice. Let's see what happens if I go into it out of curiosity. I may even read another math book! How can anything be bigger that it? Are they larger or smaller than each other? You can count primes as in the 17th prime or whatever. About the author Eugenia Cheng is Honorary Fellow in Pure Mathematics at the University of Sheffield and Scientist in Residence at the School of the Art Institute of Chicago. Unfortunately the journey was not nearly as good as the promise.

Your average layman would not find this an enjoyable read. But, to be honest, maths is a relatively rare enthusiasm at any age, so the author of a popular maths book has to really work at his or her task - and this is something Eugenia Cheng certainly does, bubbling Popular maths writers have it much harder than authors of popular science books. Also, some of her examples are attempts at putting real world faces on concepts and miss the mark by a wide margin - using a robot's multi-jointed arm's degrees of freedom as dimensions. Here Eugenia Cheng explains in a masterful way for the layman concepts of advanced mathematics,as the infinite series of infinite cardinals and ordinals,the concept of infinite countable sets is to say those that one can put in a one to one correspondence with the natural numbers and the uncountable sets where one cant ,as for example the real numbers ; in this theory developed by Cantor the first infinite cardinal are the countable sets or aleph-zero,the scond infinite cardinal is aleph-one the cardinality of real numbers. Sie folgt den Spuren des begnadeten Netzwerkers und zeigt, dass unser heutiges Wissen um die Verwundbarkeit der Erde in Humboldts Überzeugungen verwurzelt ist. From the practical to the entirely theoretical, this is a book to watch for.