This number partly identifies a logical law from the book Foundations of Arithmetic which creates a "course-of-values" for functions. The failure of that "Basic Law" of this number by Gottlob Frege inspired Russell's paradox. As initially proposed by Philippa Foot, this is t
This number partly identifies a logical law from the book Foundations of Arithmetic which creates a "course-of-values" for functions. The failure of that "Basic Law" of this number by Gottlob Frege inspired Russell's paradox. As initially proposed by Philippa Foot, this is the number of people who would be saved if the switch is flipped in the "trolley problem." A famous set of this many arguments includes an argument from degree, an argument for a (*) "first cause," and a teleological argument. This many "Ways" of proving God's existence were proposed by Thomas Aquinas. Plato's Timaeus defines aether as the classical element of this number. For 10 points, give the number used since Aristotle for the number of senses humans have.