http://book.klll.cc/ebooks/subject/13643.opds?sort_order=release_date 2025-08-15T06:43:30Z Books about Geometry -- Foundations (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-15T06:43:30Z https://book.klll.cc/ebooks/subject/13643.opds?sort_order=title Sort Alphabetically by Title 2025-08-15T06:43:30Z https://book.klll.cc/ebooks/subject/13643.opds?sort_order=downloads Sort by Popularity 2025-08-15T06:43:30Z https://book.klll.cc/ebooks/57355.opds The Foundations of Mathematics: A Contribution to the Philosophy of Geometry Paul Carus 2025-08-15T06:43:30Z https://book.klll.cc/ebooks/52091.opds An essay on the foundations of geometry Bertrand Russell 2025-08-15T06:43:30Z https://book.klll.cc/ebooks/17384.opds The Foundations of Geometry David Hilbert