http://book.klll.cc/ebooks/subject/13643.opds?sort_order=title 2025-08-16T21:08:00Z Books about Geometry -- Foundations (sorted alphabetically) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-16T21:08:00Z https://book.klll.cc/ebooks/subject/13643.opds?sort_order=release_date Sort by Release Date 2025-08-16T21:08:00Z https://book.klll.cc/ebooks/subject/13643.opds?sort_order=downloads Sort by Popularity 2025-08-16T21:08:00Z https://book.klll.cc/ebooks/52091.opds essay on the foundations of geometry Bertrand Russell 2025-08-16T21:08:00Z https://book.klll.cc/ebooks/17384.opds Foundations of Geometry David Hilbert 2025-08-16T21:08:00Z https://book.klll.cc/ebooks/57355.opds Foundations of Mathematics: A Contribution to the Philosophy of Geometry Paul Carus