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An essay on the foundations of geometry ⠃⠗⠋ braille edition

Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.

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504,362 braille cells · 533 embossed pages at 40×25 · 2,394 unrepresentable characters omitted

⠀⠠⠞⠓⠥⠎⠀⠛⠊⠧⠑⠝⠀⠁⠀⠉⠕⠕⠗⠙⠊⠝⠁⠞⠑⠀⠎⠽⠎⠞⠑⠍⠂⠀⠁⠝⠙⠀
⠛⠊⠧⠑⠝⠀⠁⠝⠽⠀⠎⠑⠞⠀⠀⠕⠋⠀⠟⠥⠁⠝⠞⠊⠞⠊⠑⠎⠂⠀⠞⠓⠑⠎⠑⠀
⠟⠥⠁⠝⠞⠊⠞⠊⠑⠎⠂⠀⠊⠋⠀⠞⠓⠑⠽⠀⠙⠑⠞⠑⠗⠍⠊⠝⠑⠀⠁⠀⠏⠕⠊⠝⠞⠀⠁⠞
⠀⠁⠇⠇⠂⠀⠀⠙⠑⠞⠑⠗⠍⠊⠝⠑⠀⠊⠞⠀⠥⠝⠊⠟⠥⠑⠇⠽⠲⠀⠠⠃⠥⠞⠂⠀⠃⠽⠀⠁
⠀⠝⠁⠞⠥⠗⠁⠇⠀⠑⠭⠞⠑⠝⠎⠊⠕⠝⠀⠕⠋⠀⠞⠓⠑⠀⠍⠑⠞⠓⠕⠙⠂⠀⠞⠓⠑⠀⠀
⠁⠃⠕⠧⠑⠀⠗⠑⠎⠑⠗⠧⠁⠞⠊⠕⠝⠀⠊⠎⠀⠙⠗⠕⠏⠏⠑⠙⠂⠀⠁⠝⠙⠀⠊⠞⠀⠊⠎⠀
⠁⠎⠎⠥⠍⠑⠙⠀⠞⠓⠁⠞⠀⠞⠕⠀⠑⠧⠑⠗⠽⠀⠎⠑⠞⠀⠀⠕⠋⠀⠟⠥⠁⠝⠞⠊⠞⠊⠑⠎
⠀⠎⠕⠍⠑⠀⠏⠕⠊⠝⠞⠀⠍⠥⠎⠞⠀⠉⠕⠗⠗⠑⠎⠏⠕⠝⠙⠲⠀⠠⠋⠕⠗⠀⠞⠓⠊⠎⠀
⠁⠎⠎⠥⠍⠏⠞⠊⠕⠝⠀⠞⠓⠑⠗⠑⠀⠀⠎⠑⠑⠍⠎⠀⠞⠕⠀⠍⠑⠀⠝⠕⠀⠧⠑⠎⠞⠊⠛⠑
⠀⠕⠋⠀⠑⠧⠊⠙⠑⠝⠉⠑⠲⠀⠠⠁⠎⠀⠺⠑⠇⠇⠀⠍⠊⠛⠓⠞⠀⠁⠀⠏⠕⠎⠞⠍⠁⠝⠀
⠁⠎⠎⠥⠍⠑⠀⠀⠞⠓⠁⠞⠂⠀⠃⠑⠉⠁⠥⠎⠑⠀⠑⠧⠑⠗⠽⠀⠓⠕⠥⠎⠑⠀⠊⠝⠀⠁⠀
⠎⠞⠗⠑⠑⠞⠀⠊⠎⠀⠥⠝⠊⠟⠥⠑⠇⠽⠀⠙⠑⠞⠑⠗⠍⠊⠝⠑⠙⠀⠃⠽⠀⠊⠞⠎⠀⠀
⠝⠥⠍⠃⠑⠗⠂⠀⠞⠓⠑⠗⠑⠋⠕⠗⠑⠀⠞⠓⠑⠗⠑⠀⠍⠥⠎⠞⠀⠃⠑⠀⠁⠀⠓⠕⠥⠎⠑⠀
⠋⠕⠗⠀⠑⠧⠑⠗⠽⠀⠊⠍⠁⠛⠊⠝⠁⠃⠇⠑⠀⠝⠥⠍⠃⠑⠗⠲⠀⠀⠠⠺⠑⠀⠍⠥⠎⠞⠀
⠅⠝⠕⠺⠂⠀⠊⠝⠀⠋⠁⠉⠞⠂⠀⠞⠓⠁⠞⠀⠁⠀⠛⠊⠧⠑⠝⠀⠎⠑⠞⠀⠕⠋⠀
⠟⠥⠁⠝⠞⠊⠞⠊⠑⠎⠀⠉⠁⠝⠀⠃⠑⠀⠞⠓⠑⠀⠀⠉⠕⠕⠗⠙⠊⠝⠁⠞⠑⠎⠀⠕⠋⠀
⠎⠕⠍⠑⠀⠏⠕⠊⠝⠞⠀⠊⠝⠀⠎⠏⠁⠉⠑⠂⠀⠃⠑⠋⠕⠗⠑⠀⠊⠞⠀⠊⠎⠀
⠇⠑⠛⠊⠞⠊⠍⠁⠞⠑⠀⠞⠕⠀⠛⠊⠧⠑⠀⠀⠁⠝⠽⠀⠎⠏⠁⠞⠊⠁⠇⠀
⠎⠊⠛⠝⠊⠋⠊⠉⠁⠝⠉⠑⠀⠞⠕⠀⠞⠓⠑⠎⠑⠀⠟⠥⠁⠝⠞⠊⠞⠊⠑⠎⠒⠀⠁⠝⠙⠀
⠞⠓⠊⠎⠀⠅⠝⠕⠺⠇⠑⠙⠛⠑⠂⠀⠀⠕⠃⠧⠊⠕⠥⠎⠇⠽⠂⠀⠉⠁⠝⠝⠕⠞⠀⠃⠑⠀
⠙⠑⠗⠊⠧⠑⠙⠀⠋⠗⠕⠍⠀⠕⠏⠑⠗⠁⠞⠊⠕⠝⠎⠀⠺⠊⠞⠓⠀⠉⠕⠕⠗⠙⠊⠝⠁⠞⠑⠎
⠀⠁⠇⠕⠝⠑⠂⠀⠀⠕⠝⠀⠏⠁⠊⠝⠀⠕⠋⠀⠁⠀⠧⠊⠉⠊⠕⠥⠎⠀⠉⠊⠗⠉⠇⠑⠲⠀
⠠⠺⠑⠀⠍⠥⠎⠞⠂⠀⠞⠕⠀⠗⠑⠞⠥⠗⠝⠀⠞⠕⠀⠞⠓⠑⠀⠁⠃⠕⠧⠑⠀
⠁⠝⠁⠇⠕⠛⠽⠂⠀⠀⠅⠝⠕⠺⠀⠞⠓⠑⠀⠝⠥⠍⠃⠑⠗⠀⠕⠋⠀⠓⠕⠥⠎⠑⠎⠀⠊⠝⠀
⠠⠏⠊⠉⠉⠁⠙⠊⠇⠇⠽⠂⠀⠃⠑⠋⠕⠗⠑⠀⠺⠑⠀⠅⠝⠕⠺⠀⠺⠓⠑⠞⠓⠑⠗⠀⠁⠀⠀

These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.