A NEW SCIENTIST BOOK OF THE YEAR
'Clear, clever and friendly...even at her most whimsical, she is rigorous and insightful' ALEX BELLOS
'Eugenia Cheng has humour, grace and a natural gift' DANIEL LEVITIN
'Playful and deeply serious ... shows how exploring equality in maths may help the real world' NEW SCIENTIST
When we see an equals sign, we usually see something clear cut: problem on one side, solution on the other. We might need to shuffle some things around - balance the equation - to get there, but it's all pretty clear cut...isn't it?
As it turns out, between those parallel lines lies something far more exciting than questions and answers. An equals sign is an invitation to a mathematical playground of choice and abstraction. By opening your mind to different mathematical choices and perspectives, you can unlock far greater insight than you could have dreamed.
Eugenia Cheng explores the rich and rewarding interplay between sameness and difference, and offers us a new way to see the world based on the choices and interpretations we make. A glorious celebration of mathematics, Unequal will change the way you think - in maths, and in life.
- English
- ePUB (mobile friendly)
- Available on iOS & Android
eBook - ePub
About this book
Trusted by 375,005 students
Access to over 1.5 million titles for a fair monthly price.
Study more efficiently using our study tools.
Information
Table of contents
- Cover
- Halftitle Page
- Also by Eugenia Cheng
- Title Page
- Copyright Page
- Contents
- Introduction
- 1 When are things the same?
- 2 Equations
- 3 The stories hiding behind numbers
- 4 Equality between functions
- 5 Why the Earth could be a bagel
- 6 Interchangeable lids and mathematical glue
- 7 Logic, emotions, insight
- 8 Sameness in category theory
- 9 Sameness in branches of maths
- 10 From Sheffield to Buffalo
- 11 More dimensions, more forgiveness
- Epilogue
- Acknowledgements
- Index
Frequently asked questions
Yes, you can cancel anytime from the Subscription tab in your account settings on the Perlego website. Your subscription will stay active until the end of your current billing period. Learn how to cancel your subscription
No, books cannot be downloaded as external files, such as PDFs, for use outside of Perlego. However, you can download books within the Perlego app for offline reading on mobile or tablet. Learn how to download books offline
We are an online textbook subscription service, where you can get access to an entire online library for less than the price of a single book per month. With over 1.5 million books across 990+ topics, we’ve got you covered! Learn about our mission
Look out for the read-aloud symbol on your next book to see if you can listen to it. The read-aloud tool reads text aloud for you, highlighting the text as it is being read. You can pause it, speed it up and slow it down. Learn more about Read Aloud
Yes! You can use the Perlego app on both iOS and Android devices to read anytime, anywhere — even offline. Perfect for commutes or when you’re on the go.
Please note we cannot support devices running on iOS 13 and Android 7 or earlier. Learn more about using the app
Please note we cannot support devices running on iOS 13 and Android 7 or earlier. Learn more about using the app
Yes, you can access Unequal by Eugenia Cheng in PDF and/or ePUB format, as well as other popular books in Biological Sciences & History & Philosophy of Mathematics. We have over 1.5 million books available in our catalogue for you to explore.