Skip to content

Library / Philosophy / Symbolic Logic / Braille

Symbolic Logic ⠃⠗⠋ 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.

Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt

428,403 braille cells · 419 embossed pages at 40×25 · 28,187 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.