00587cam a2200193 4500 612206487 TxAuBib 20221210120000.0 221210s2022||||||||||||||||||||||||eng|u 69512 Project Gutenberg PGUSA eng TxAuBib Boole, George. The calculus of logic [Gutenberg] / George Boole. Project Gutenberg, 2022. Project Gutenberg ; 69512 Public domain in the USA. Electronic text. Project Gutenberg ; 69512. http://www.gutenberg.org/ebooks/69512