Project Gutenberg 2021-12-26 Public domain in the USA. 161 De Morgan, Augustus 1806 1871 Morgan, Augustus de First notions of logic (preparatory to the study of geometry) 1st notions of logic (preparatory to the study of geometry) $aUnited Kingdom :$bTaylor and Walton,$c1839. Richard Tonsing and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "First notions of logic (preparatory to the study of geometry)" by Augustus De Morgan is a scientific publication written in the early 19th century. The book serves as an introductory text to logical reasoning, particularly in the context of preparing students for the study of geometry, emphasizing the importance of understanding the process of inference and the construction of valid arguments. In this work, De Morgan explains the fundamental principles of logic, detailing the various types of propositions and their implications for reasoning. He outlines how conclusions can be accurately inferred from given premises and discusses the importance of clear definitions in logical discourse. The text also distinguishes between affirmative and negative propositions, universal and particular statements, and introduces concepts such as syllogisms, contradictions, and the roles of middle terms in arguments. Through examples and structured reasoning, De Morgan aims to equip students with the essential tools for logical analysis, paving the way for deeper exploration into mathematics and geometry. (This is an automatically generated summary.) https://archive.org/details/firstnotionsoflo00demoiala 20200725110334demorgan 1839 GB Reading ease score: 54.4 (10th to 12th grade). Somewhat difficult to read. en Logic BC Text Category: Mathematics Category: Philosophy & Ethics 133531 2025-07-26T12:00:53.056065 text/html 117642 2024-10-18T17:50:37 text/html 286850 2025-07-26T12:00:58.176579 application/epub+zip 287285 2025-07-26T12:00:54.549074 application/epub+zip 87955 2025-07-26T12:00:53.860075 application/epub+zip 332319 2025-07-26T12:01:00.390581 application/x-mobipocket-ebook 328456 2025-07-26T12:00:57.608553 application/x-mobipocket-ebook 129941 2022-09-30T06:35:58.955871 application/x-mobipocket-ebook 87270 2025-07-26T12:00:52.350065 text/plain; charset=us-ascii 67161 2024-10-18T17:50:37 text/plain; charset=us-ascii 16549 2025-07-26T12:01:01.507633 application/rdf+xml 11305 2025-07-26T12:00:54.054058 image/jpeg 1827 2025-07-26T12:00:53.935054 image/jpeg 283295 2025-07-26T12:00:53.069060 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia