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The Infinity Delusion

The Infinity Delusion

 

 

A book about the great divide in modern mathematics.

 

The Infinity Delusion is published by Alterologic as an eBook

ISBN: 978-1-906706-03-6

 

Available at all good online booksellers.

 

 

Buy the eBook at Amazon UK

 

Buy the eBook at Amazon USA

 

Buy the eBook at Smashwords

 

 

About the book

Why do some people believe that numbers ‘exist’, rather than simply being a concept of our minds? In particular, why should we believe that numbers that consist of the sum of an infinite number of other numbers added together ‘exist’?

 

And maybe you don’t think it matters very much - but there you would be quite wrong. This book shows how mathematics has become divided into two quite disparate branches, where one branch is based on logical foundations, but the other is based on irrational Platonist beliefs and a failure to understand that ignoring the limitations of language can give erroneous results. This divide should not be confused with the quite different notion of the division of mathematics into ‘pure’ and ‘applied’ mathematics. It is commonly considered that ‘pure’ mathematics covers any mathematics which operates without any reference at all to the real world, whereas ‘applied’ mathematics is when mathematics uses pure mathematics as a base in order to solve real world problems. But the dichotomy that is the subject of this book is not about this distinction between “applied mathematics” and “pure mathematics”.

 

This book shows how there is one branch of mathematics whose foundations have been built up from observation of the real world; this is real-world mathematics. The other branch is not based on observations of the real world, but is based on an irrational belief in some sort of actual non-physical ‘existence’ of mathematical things such as numbers and sets; this belief that is utterly devoid of any logical foundation. This branch of mathematics has no applied part, and is devoid of any applicability to the real world. This form of ‘mathematics’ is no different to a religion which creates a plethora of pronouncements based upon the presumption of the existence of some non-physical entity. The claims of this branch of mathematics are reliant on a tiny number of proofs which all include logical fallacies. This branch of mathematics can be called fantasy mathematics.

 

Note that the real-world branch of mathematics referred to above can be further divided into its foundational part which you could call ‘pure’ mathematics, and you could call the other part that applies this foundational part to real world situations ‘applied’ mathematics.

 

 

Why I wrote this book

I wrote this book because I became aware as to how little attention is paid to the limitations of language although every time a statement is made that is supposedly logical, that statement must be made in some language. In conventional logical arguments, the limitations of language are almost always ignored. The consequences of this are particularly evident in mathematics, where there are theories that are based on the philosophy that numbers and other mathematical concepts are ‘actual’ things that ‘exist’ independently of any physical reality. Such beliefs are commonly held on an almost subliminal level; most people have never taken the time to carefully examine the basis and the consequences of such beliefs. It is because of such beliefs that detailed considerations of language are ignored - with the result that a detailed evaluation of the possibility of errors due to limitations of language is generally considered unnecessary.

Every statement has to be stated in some language. If assumptions are made that ignore some aspects of the language of the statement, then how can we be sure that the statement is entirely logical? Unless every aspect of such statements is very carefully analyzed, a statement that superficially appears to be logical may actually contain subtle errors of logic.

 

I decided to write this book because it became apparent to me that the belief in the ‘real’ ‘existence’ of mathematical concepts and the concomitant obliviousness of the limitations of language had resulted in mathematics becoming divided into two quite separate branches. It seemed to me that this was a major obstacle to the future progress of mathematics.

 

The reader should note that when I started working on this book, I took care to ensure that my approach would not be that one of the two branches was ‘wrong’ and that the other branch was ‘right’. At the outset, my objective was only to show that that while you could have two quite distinct mathematical systems, which are both logically valid and consistent, only one of them seemed to be applicable to real world situations. If I did have any preconception, it was that the theories of both branches were completely logical and coherent – and that the only essential difference between them was that one branch could be applied to the real world, and that the other branch could not.

 

But as I continued my research, it became clear that one of the branches is based on a number of concepts that are logically untenable, and which are actually contradictory - and that the entire edifice of this branch of mathematics is based on a few key proofs where the ingrained belief in the real non-physical existence of the mathematical notions that the proofs refer to means that any limitations due to language in these proofs are completely ignored. This book is the result of this research.

 

NEWS

There’s something about Gödel by Francesco Berto

There is a new addition to the page Yet another flawed incompleteness proof, where Berto’s proof of incompleteness in his book There’s something about Gödel comes under scrutiny.

 

 

Easy Footnotes

I found that making, adding or deleting footnotes in the traditional manner proved to be a major pain. So I developed a different system for footnotes which makes inserting or changing footnotes a doddle. You can check it out at Easy Footnotes for Web Pages (Accessibility friendly).

 

 

O’Connor’s “computer checked” proof

I have now added a new section to my paper on Russell O’Connor’s claim of a computer verified incompleteness proof. This shows that the flaw in the proof arises from a reliance on definitions that include unacceptable assumptions - assumptions that are not actually checked by the computer code. See also the new page Representability.

 

 

New page on Chaitin’s Constant

There is now a new page on Chaitin’s Constant (Chaitin’s Omega), which demonstrates that Chaitin has failed to prove that it is actually algorithmically irreducible.

 

 

Updated: Diagonal Lemma

Flawed proofs of the Diagonal Lemma by Panu Raatikainen and Vann McGee have been added to the Diagonal Lemma web page.

Previous Blog Posts  

 

16th Mar 2015 Bishops Dancing with Pixies?

 

23rd Feb 2015 Artificial Intelligence

 

31 Mar 2015 Cranks and Crackpots

 

30 Apr 2015 The Chinese Room

 

Links  

 

For convenience, there are now two pages on this site with links to various material relating to Gödel and the Incompleteness Theorem

 

– a page with general links:

Gödel Links

 

– and a page relating specifically to the Gödel mind-machine debate:

Gödel, Minds, and Machines

 

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