Cambridge Core – Computing: General Interest – Computability and Logic – by George S. Boolos. but instructors who adopt Computability & Logic as a textbook are hereby authorized to copy and distribute the present Part A. This permission does not extend. Computability and Logic has become a classic because of its accessibility to students without a mathematical background and because it covers not simply the.

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The second chapter of Computability and Logic is a clever and easy introduction to diagonalization, and I highly recommend it to newcomers. It’s quite fun to pop the thing open and see the little gears.

Read the ones that seem interesting, but don’t be afraid to skip the ones that seem boring. Diagonalization is incredibly important if you want to play computabiltiy infinities or learn about decidability.

This book wasn’t the most useful book I’ve read in this series. Preview — Computability and Logic by George S. Want to Read Currently Reading Read.

Book Review: Computability and Logic

It’s good clean fun to see these things play out in front amd you, instead of just hearing the results secondhand. Return to Book Page.

Jan 05, Lane Logif rated it it was amazing Shelves: This chapter is perhaps less fun than the others, but no less important. They’re less polished and less motivated, and more likely to just dump a proof on you. You should probably pick up a book on how to effectively, and elegantly, write a proof before reading this. It also introduces the concepts of soundness and completeness.


Again, this chapter is clever and fun to read. Nov 24, Correy rated it really liked it. Computability and Logicspecifically. I only slowed down and gave the book more time when it turned out to be a lot of fun.

Computability and Logic

Several proofs are, in fact, impossible. Assumming little background knowledge, it has been incredibly satisfying to be shown how various computational systems work, and then also to show that they’re equivalent.

This is the mechanism by which we will embed arithmetic in itself.

I can’t do it justice in a few mere paragraphs: Diagonalization in arithemtic is always a volos to run your mind over, in my experience. Turing machines and recursive functions are computational engines of precisely the same power. The above definitions are extended to define recursive sets and relations. Lattice Representations for Computability Theory. Rajeev Shrivastava rated it it was amazing Jan 13, Open Preview See a Problem? Cristian CaludeM. Here we start getting computabiliity a little bit of model theory, binding the syntax of first order logic to semantics.

G. S. Boolos & R. C. Jeffrey, Computability and Logic – PhilPapers

Jeffrey – – Cambridge University Press. Find it on Scholar. These are a set of building blocks for some pretty interesting functions, and we are now firmly in math land.

I highly recommend you familiarize yourself with these concepts at some point in computabillty life, if only for fun. Fejer – – Annals of Pure and Applied Logic 94 It even feels nice — it’s got thick pages, large text, and a number of useful diagrams. Craig’s interpolation theorem lets us construct a sentence that is “between” an implication and has some nice properties.


The turing machine chapters are decent. You get to see the chain of implications that represent the computation of the Turing machine. I already knew all the computability stuff quite well, and skimmed over much of it. The chapter walks you through the whole thing and makes it easy. Even if you know that the deduction problem is equivalent to the halting problem, it’s illuminating to play directly with an encoding of Turing machines as logical theories.

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This discusses some results surrounding the definability of truth in arithmetic: View all 3 comments. This chapter introduces provability logic and is the reason I picked up this textbook, initially.

This chapter is logif neat. The fact that this can be done is incredibly cool, to say the least. Don’t pick it up for computbility reason, no matter what Luke tells you: To see what your friends thought of this book, please sign up. We can actually make that stronger: This is all well and good, but I was expecting much more detail and motivation, given the impressive motivation found elsewhere in the book.

They are “recursive” if their indicator functions can be constructed from recursive building blocks. Even if you’re pretty comfortable with diagonalization, you may enjoy this chapter for its crisp treatment of the device. Some Notes on Truths and Comprehension.