Skip to contentSkip to Braille Studio

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 · 24,749 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.