[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-40382-en":3,"doc-seo-40382-105":29,"detail-sidebar-cat-0-en-105":90},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"doc_content":15,"file_id":16,"file_url":17,"file_type":18,"file_size":19,"view_count":20,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":21,"language":22,"language_code":23,"site_id":24,"html_lang":23,"table_of_contents":25,"faqs":26,"seo_title":13,"seo_description":14,"update_tm":27,"read_time":28},40382,8796095461564,"Liam","https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d",4,"Exam","Introduction to Logic Fifteenth Edition","Introduction to Logic (Fifteenth Edition) presents an updated introductory study of deductive reasoning, argument analysis, and informal logic. The edition refines core definitions to strengthen later chapters while expanding instructional detail for truth-table methods, including the Complete Truth-Table Method and the Shorter Truth-Table Method. It also provides a fuller treatment of Indirect Proof, adds Conditional Proof and new discussion distinguishing sound versus demonstrative arguments, and extends learning support through companion online resources and instructor materials.","INTRODUCTION TO  \nLOGIC  \nFor more than six decades, and for thousands of students, Introduction to Logic has been the gold standard in introductory logic texts. In this fifteenth edition, Carl Cohen and Victor Rodych update Irving M. Copi’s classic text, improving on its many strengthsand introducing new and helpful material that will greatly assist both students and instructors.  \nIn particular, Chapters 1, 8, and 9 have been greatly enhanced without disturbing the book’s clear and gradual pedagogical approach.  \nSpecifically:  \n• Chapter 1 now uses a simpler and better definition of “deductive validity,” which enhances the rest of the book (especially Chapters 1 and 8–10, and their new components) .  \n• Chapter 8 now has:  \n• Simpler definitions of “simple statement” and “compound statement”  \n• More and more detailed examples of the Complete Truth-Table Method.  \n• Chapter 9 now has:  \n• A detailed, step-by-step account of the Shorter Truth-Table Method (with detailed step-by-step examples for conclusions of different types)  \n• A more complete and detailed account of Indirect Proof  \n• A detailed justification for Indirect Proof treating each of the three distinct ways in which an argument can be valid  \n• A new section on Conditional Proof, which complements the 19 Rules of Inference and Indirect Proof  \n• Explications of proofs of tautologies using both Indirect Proof and Conditional Proof  \n• A new section at the end of the chapter explaining the important difference between sound and demonstrative arguments.  \n• The Appendices now include:  \n• A new appendix on making the Shorter Truth-Table Technique (STTT) more efficient by selecting the most efficient sequence of STTT steps  \n• A new appendix on Step 1 calculations for multiple-line shorter truth tables  \n• A new appendix on unforced truth-value assignments, invalid arguments, and Maxims III–V.  \nIn addition, a Companion Website  \nfor Students:  \n• A Proof Checker  \n• Complete Truth-Table Exercises  \n• Shorter Truth-Table Exercises  \n• A Truth-Table Video  \n• Venn Diagram Testing of Syllogisms  \n• Hundreds of True/False and Multiple Choice Questions  \nfor Instructors:  \n• An Instructor’s Manual  \n• A Solutions Manual [www.routledge.com/cw/9781138500860](www.routledge.com/cw/9781138500860)  \nIrving M. Copi was a logician who studied under Bertrand Russell while atthe University of Chicago. He held appointments at, among other institutions, Princeton University, the University of Michigan, and the University of Hawaii at Manoa. Among the bookshe published before his death in 2002 was The Theory of Logical Types (Routledge, 1971) .  \nCarl Cohen is the Senior Faculty Member in the Department of Philosophy at the University of Michigan, having taught at this university since 1955. Among his many published books is his account of the battle over affirmative action at the University of Michigan, A Conflict of Principles (2014) . His most recent book is a concise philosophical rejection of all forms of race preference, Both Wrong and Bad (2018) .  \nVictor Rodych is Professor of Philosophy at the University of Lethbridge. He has published extensively on Ludwig Wittgenstein’s philosophy of mathematics. Together with Timothy Pope, Rodych is working on Ludwig Wittgenstein, Writings on Mathematics and Logic, 1937–1944, to be published in five volumes by Cambridge University Press.  \nINTRODUCTION TO  \nLOGIC  \nFIFTEENTH EDITION  \nIrving M. Copi Carl Cohen Victor Rodych  \nFifteenth edition published 2019 by Routledge  \n52 Vanderbilt Avenue, New York, NY 10017 and by Routledge  \n2 Park Square, Milton Park, Abingdon, Oxon, OX14 4RN  \nRoutledge is an imprint of the Taylor & Francis Group, an informa business © 2019 Taylor & Francis  \nThe right of Irving M. Copi, Carl Cohen, and Victor Rodych to be identified as authors of this work has been asserted by them in accordance with sections 77 and 78 of the Copyright, Designs and Patents Act 1988.  \nAll rights reserved. No part of this book may be re","cbCaidfWNOA3r4Ba","https://ap.wps.com/l/cbCaidfWNOA3r4Ba","pdf",7443373,1,723,"English","en",105,"# Brief Contents\n## Part I: Logic and Language\n## Part II: Deduction","[{\"question\":\"What major updates were made to Chapter 1 in the fifteenth edition?\",\"answer\":\"Chapter 1 uses a simpler and better definition of “deductive validity,” designed to enhance the clarity and effectiveness of the rest of the book, especially related chapters and their new components.\"},{\"question\":\"What enhancements does the book make to the truth-table methods?\",\"answer\":\"Chapter 8 adds simpler definitions of “simple statement” and “compound statement,” along with more detailed examples of the Complete Truth-Table Method. Chapter 9 provides a step-by-step account of the Shorter Truth-Table Method, including detailed examples for different conclusion types.\"},{\"question\":\"What new material about proof and argument evaluation is added?\",\"answer\":\"The edition expands Indirect Proof with a more complete justification and adds a new section on Conditional Proof. 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Chapter 9 provides a step-by-step account of the Shorter Truth-Table Method, including detailed examples for different conclusion types.",{"name":81,"@type":72,"acceptedAnswer":82},"What new material about proof and argument evaluation is added?",{"text":83,"@type":75},"The edition expands Indirect Proof with a more complete justification and adds a new section on Conditional Proof. 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