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Deductive Logic ⠃⠗⠋ 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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381,717 braille cells · 398 embossed pages at 40×25 · 2,861 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.