Thomas Robin Books

Toronto, Grey & Bruce Railway

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Excluding Infinite Clique Minors

By Robin Thomas, Paul Seymour, Thomas Robin, Neil Robertson, Robertson, Neil, Seymour, Paul D., Paul D. Seymour

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Two of the authors proved a well-known conjecture of K. Wagner, that in any infinite set of finite graphs there are two graphs so that one is a minor of the other. A key lemma was a theorem about t...

The AutoCAD 2000i Workbook

By Thomas J. Robin, Michael Ward, Michael K. Ward, Thomas Robin

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Excluding Infinite Clique Minors

By Thomas Robin, Neil Robertson, Robertson, Neil, Seymour, Paul D.

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.