Library / Mathematics / First notions of logic (preparatory to the study of geometry) / Braille
First notions of logic (preparatory to the study of geometry) ⠃⠗⠋ braille edition
Grade 2 — contracted English braille (EBAE-compatible subset). Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 1 instead.
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⠮⠀⠙⠊⠗⠑⠉⠞⠀⠉⠕⠝⠞⠗⠜⠽⠲⠀⠠⠔⠀⠉⠁⠎⠑⠎⠀⠀⠱⠊⠡⠀⠷⠋⠻⠀⠃⠀ ⠞⠺⠕⠀⠁⠇⠞⠻⠝⠁⠞⠊⠧⠑⠎⠂⠀⠐⠕⠀⠷⠀⠱⠊⠡⠀⠊⠎⠀⠝⠑⠉⠑⠎⠎⠜⠽⠂⠀ ⠘⠮⠀⠀⠁⠍⠳⠝⠞⠀⠞⠕⠀⠮⠀⠎⠁⠍⠑⠀⠹⠬⠂⠀⠎⠔⠉⠑⠀⠮⠀⠙⠢⠊⠁⠇⠀⠷⠀ ⠐⠕⠂⠀⠯⠀⠮⠀⠁⠋⠋⠊⠗⠍⠁⠞⠊⠕⠝⠀⠀⠷⠀⠮⠀⠕⠮⠗⠂⠀⠁⠗⠑⠀ ⠕⠃⠧⠊⠳⠎⠇⠽⠀⠑⠟⠥⠊⠧⠁⠇⠢⠞⠀⠏⠗⠕⠏⠕⠎⠊⠞⠊⠕⠝⠎⠲⠀⠠⠔⠀⠸⠍⠀ ⠊⠙⠊⠕⠍⠎⠀⠷⠀⠀⠉⠕⠝⠧⠻⠎⠁⠞⠊⠕⠝⠂⠀⠮⠀⠝⠑⠛⠁⠞⠊⠧⠑⠀ ⠊⠍⠏⠇⠊⠑⠎⠀⠁⠋⠋⠊⠗⠍⠁⠞⠊⠕⠝⠀⠷⠀⠮⠀⠉⠕⠝⠞⠗⠜⠽⠀⠔⠀⠉⠁⠎⠑⠎⠀ ⠱⠊⠡⠀⠷⠋⠻⠀⠝⠀⠕⠝⠇⠽⠀⠁⠇⠞⠻⠝⠁⠞⠊⠧⠑⠎⠂⠀⠃⠀⠙⠑⠛⠗⠑⠑⠎⠀⠷⠀ ⠁⠇⠞⠻⠝⠁⠞⠊⠧⠑⠎⠲⠀⠠⠹⠥⠎⠂⠀⠞⠕⠀⠀⠮⠀⠐⠟⠂⠀⠼⠦⠠⠊⠎⠀⠓⠑⠀ ⠞⠁⠇⠇⠦⠄⠀⠮⠀⠎⠊⠍⠏⠇⠑⠀⠁⠝⠎⠺⠻⠂⠀⠼⠦⠠⠝⠕⠂⠄⠀⠍⠕⠌⠀ ⠋⠗⠑⠟⠥⠢⠞⠇⠽⠀⠀⠍⠑⠁⠝⠎⠀⠞⠀⠓⠑⠀⠊⠎⠀⠮⠀⠉⠕⠝⠞⠗⠜⠽⠀⠷⠀ ⠞⠁⠇⠇⠂⠀⠕⠗⠀⠉⠕⠝⠎⠊⠙⠻⠁⠃⠇⠽⠀⠐⠥⠀⠮⠀⠀⠁⠧⠻⠁⠛⠑⠲⠀⠠⠃⠀⠭⠀ ⠍⠥⠌⠀⠃⠑⠀⠗⠑⠍⠑⠍⠃⠻⠫⠂⠀⠞⠂⠀⠔⠀⠁⠇⠇⠀⠇⠕⠛⠊⠉⠁⠇⠀ ⠗⠑⠁⠎⠕⠝⠬⠂⠀⠮⠀⠀⠝⠑⠛⠁⠞⠊⠕⠝⠀⠊⠎⠀⠎⠊⠍⠏⠇⠽⠀⠝⠑⠛⠁⠞⠊⠕⠝⠂ ⠀⠯⠀⠝⠕⠹⠬⠀⠍⠂⠀⠝⠑⠧⠻⠀⠊⠍⠏⠇⠽⠬⠀⠀⠁⠋⠋⠊⠗⠍⠁⠞⠊⠕⠝⠀⠷⠀⠮⠀ ⠉⠕⠝⠞⠗⠜⠽⠲⠀⠀⠀⠀⠠⠮⠀⠉⠕⠍⠍⠕⠝⠀⠏⠗⠕⠏⠕⠎⠊⠞⠊⠕⠝⠀⠞⠀⠞⠺⠕⠀ ⠝⠑⠛⠁⠞⠊⠧⠑⠎⠀⠍⠁⠅⠑⠀⠁⠝⠀⠁⠋⠋⠊⠗⠍⠁⠞⠊⠧⠑⠂⠀⠊⠎⠀⠞⠗⠥⠑⠀⠀ ⠕⠝⠇⠽⠀⠘⠥⠀⠮⠀⠎⠥⠏⠏⠕⠎⠊⠞⠊⠕⠝⠀⠞⠀⠮⠗⠑⠀⠁⠗⠑⠀⠃⠀⠞⠺⠕⠀ ⠏⠕⠎⠎⠊⠃⠇⠑⠀⠹⠬⠎⠂⠀⠐⠕⠀⠷⠀⠀⠱⠊⠡⠀⠊⠎⠀⠙⠢⠊⠫⠲⠀⠠⠛⠗⠁⠝⠞⠀ ⠞⠀⠁⠀⠍⠁⠝⠀⠍⠥⠌⠀⠃⠑⠀⠑⠊⠮⠗⠀⠁⠃⠇⠑⠀⠕⠗⠀⠥⠝⠁⠃⠇⠑⠀⠞⠕⠀⠙⠀ ⠁⠀⠀⠏⠜⠞⠊⠉⠥⠇⠜⠀⠹⠬⠂⠀⠯⠀⠮⠝⠀⠝⠀⠥⠝⠁⠃⠇⠑⠀⠯⠀⠁⠃⠇⠑⠀⠁⠗⠑ ⠀⠮⠀⠎⠁⠍⠑⠀⠹⠬⠎⠲⠀⠀⠠⠃⠀⠊⠋⠀⠺⠑⠀⠎⠥⠏⠏⠕⠎⠑⠀⠧⠜⠊⠳⠎⠀ ⠙⠑⠛⠗⠑⠑⠎⠀⠷⠀⠏⠻⠿⠍⠁⠝⠉⠑⠂⠀⠯⠀⠮⠗⠑⠿⠑⠀⠙⠑⠛⠗⠑⠑⠎⠀⠀⠷⠀ ⠁⠃⠊⠇⠊⠞⠽⠂⠀⠭⠀⠊⠎⠀⠋⠁⠇⠎⠑⠂⠀⠔⠀⠮⠀⠉⠕⠍⠍⠕⠝⠀⠎⠢⠎⠑⠀⠷⠀⠮ ⠀⠺⠕⠗⠙⠎⠂⠀⠞⠀⠞⠺⠕⠀⠀⠝⠑⠛⠁⠞⠊⠧⠑⠎⠀⠍⠁⠅⠑⠀⠁⠝⠀
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.