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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These are a set of building blocks for some pretty interesting functions, and we are now firmly in math land. There are no discussion topics on this book yet. Return to Book Page. This chapter would have been valuable before I started reading Model Theory. Emily rated it really liked it Sep 18, Knowledge of enumerability is central to many issues in computer science, and is integral in any study of infinities. Several proofs are, in fact, impossible.

Computability and Logic

It introduces you to all the right concepts. Structuralism and the Identity of Indiscernibles. No keywords specified fix it. It’s quite fun to pop the thing open and see the little gears. Computability and Logicspecifically.

Again, this would have been good preliminaries for Model Theoryin which compactness is proved about a paragraph. Craig’s interpolation theorem lets us construct a sentence that is “between” an implication and has some nice properties. There’s something magical about seeing the connections between computation and logic laid bare before you.

First, we discuss a variety of normal forms into which we can put logical sentences, each of which makes particular proofs adn. Lewis Cawthorne rated it liked it Jun 28, Science, Logic, and Mathematics.


You get to see the chain of implications that represent the computation of the Turing machine. This book wasn’t the most useful book I’ve computaiblity in this series. That’s no small feat. They are “recursive” if their indicator functions can be constructed from recursive building blocks. It also sets up Model Theory nicely and has a brief intro to modal logic.

This chapter is dedicated to encoding a Turing machine as a logical lkgic. It’s very interesting boloe see how much is equivalent to that one fact, but I also can’t help but feel lohic some of the proofs could benefit from a different persp Written for an audience with little more background in Math than the absolute basics of Set Theory probably reading the Enderton book on Set Theory is enough prep for this one, and that’s a very light readit casts a great many interesting theorems in Logic and Computability as so many instances of the non-enumerability of the reals.

It turns out Turing programs are enumerable as is anything you can write out with symbols from a finite alphabet. If computability is a new field to you, you’ll enjoy this chapter. By this measure, the following sets are the same size:.

For me, though, it was on the easy side. Again, fomputability this sounds new, I highly recommend picking up Computability and Logic: This book is a wonderful introduction to computability, incompleteness, unsatisfiability, and related concepts.

In any case, though, it’s good for the novice and even a worthwhile quick read for a more advanced audience who hasn’t seen this exact presentation before.


It masterfully motivates the connection between computability and logic a subject near and dear to my heart. View all 3 comments. If you don’t already know how this story goes, I won’t ruin the surprise.

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

This chapter introduces Ramsey’s theorem a result in combinatorics and uses it to obtain an undecidable sentence that doesn’t do any overt diagonalization. Marcin Tkaczyk – – Roczniki Filozoficzne: Hanamanth Rathod rated it really liked it Dec 11, Jan 05, Lane Wilkinson rated it it was amazing Shelves: Boolos George and Jeffrey Richard.

History of Western Philosophy. Vomputability CaludeM.

It walks you through the implementation of a Turing machine, and shows you a number of clever algorithms by which a Turing machine computes simple algorithms. After seeing Turing machines, it is again easy to grow overconfident and feel like you can compute anything.

Jeffrey – – Cambridge University Press. Computability and Logic by George S. BoolosJohn P. Even if you know the results, you may find it useful or just fun to toy with an actual bridge between the two formalisms. This chapter is kind of fun, and it’s nice to see an undecidable sentence that doesn’t come from direct self-reference trickery, but you won’t miss much if you skip it.