TY  - BOOK
AU  - Boole,George
TI  - An Investigation of the Laws of Thought: On which are founded the mathematical theories of logic and probabilities
AV  - BC 
PY  - 2005///
PB  - Project Gutenberg
KW  - Probabilities
KW  - Logic, Symbolic and mathematical
KW  - Thought and thinking
N1  - Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/15114
ER  -