- George Boole (plato.standford.edu)
George Boole (1815–1864) was an English mathematician and a founder of the algebraic tradition in logic. He worked as a schoolmaster in England and from 1849 until his death as professor of mathematics at Queen’s University, Cork, Ireland. He revolutionized logic by applying methods from the then-emerging field of symbolic algebra to logic. Where traditional (Aristotelian) logic relied on cataloging the valid syllogisms of various simple forms, Boole’s method provided general algorithms in an algebraic language which applied to an infinite variety of arguments of arbitrary complexity. These results appeared in two major works, The Mathematical Analysis of Logic (1847) and The Laws of Thought (1854).
- Liberty Bell Mountain (summitpost.org)
Liberty Bell stands guard over Washington Pass, and all climbers driving over Highway 20 stop to drool. First is the East Face, with it’s steep big wall climbs. Then comes the South and West faces with modest climbs in the 5.6 to 5.9 range, a peak baggers dream. Finally, is the mercifully short approach, especially for a Cascades climb. It is very popular with climbers during the summer months, and you might get stuck behind another group on the wall. The Liberty Crack is listed in the book “The 50 Classic Climbs of North America”, which includes routes such as Denali’s West Butress, the North Ridge of Mt. Stuart, and the Nose of El Capitan.
- Liberty Bell Mountain (Wikipedia)
Liberty Bell Mountain is located in the North Cascades, State of Washington, United States, approximately one mile south of Washington Pass on the North Cascades Highway. Liberty Bell is the most northern spire of the Liberty Bell Group, a group of spires that also includes Concord Tower, Lexington Tower, North Early Winters Spire, and South Early Winters Spire.