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 Project Gutenberg 2005-11-04 Public domain in the USA. 278 Lehmer, Derrick Norman 1867 1938 An Elementary Course in Synthetic Projective Geometry "An Elementary Course in Synthetic Projective Geometry" by Derrick Norman Lehmer is a scientific publication written in the early 21st century. This work focuses on the principles and fundamental concepts of synthetic projective geometry, aiming to present the topic in an accessible manner for both college students and potentially for secondary education. The text emphasizes the importance of understanding geometric relationships and structures without reliance on measurement, highlighting the significance of one-to-one correspondences and projective properties. The beginning of the course outlines the author's motivations and pedagogical approach, which departs from traditional methods to provide a clearer understanding of synthetic projective geometry. Lehmer explains the foundational concepts, such as one-to-one correspondence and the relationships among different geometric forms, like point-rows and pencils of rays. He stresses the necessity of a solid grounding in elementary geometry for students, suggesting that those with additional knowledge in analytical geometry and calculus will find the material easier to comprehend. This foundation prepares readers for a deeper exploration of projective relations, constructions, and theorems laid out in subsequent chapters. (This is an automatically generated summary.) Reading ease score: 66.9 (8th & 9th grade). Neither easy nor difficult to read. en Geometry, Projective QA Text Mathematics Category: Mathematics 589775 2025-07-07T09:31:39.610301 text/html 590628 2021-06-22T07:23:14 text/html 590566 2025-07-07T09:31:59.788154 application/epub+zip 595411 2025-07-07T09:31:46.785247 application/epub+zip 159313 2025-07-07T09:31:42.424253 application/epub+zip 2376216 2025-07-07T09:32:08.778203 application/x-mobipocket-ebook 2179295 2025-07-07T09:31:55.867220 application/x-mobipocket-ebook 363014 2022-09-08T08:44:43.643206 application/x-mobipocket-ebook 227195 2025-07-07T09:31:37.711461 text/plain; charset=us-ascii 226971 2021-06-22T07:23:27 text/plain; charset=us-ascii 18747 2025-07-07T09:32:08.935123 application/rdf+xml 22824 2025-07-07T09:31:43.031245 image/jpeg 4726 2025-07-07T09:31:42.733244 image/jpeg 69131 2021-06-22T07:23:51 application/octet-stream application/zip 486972 2021-06-22T07:24:14 application/octet-stream application/zip 584552 2025-07-07T09:31:39.748279 application/octet-stream application/zip en.wikipedia