5 ideas
15927 | Definition just needs negation, known variables, conjunction, disjunction, substitution and quantification [Weyl, by Lavine] |
5987 | Alcmaeon was the first to say the brain is central to thinking [Alcmaeon, by Staden, von] |
10246 | The limit of science is isomorphism of theories, with essences a matter of indifference [Weyl] |
1558 | Clearly the gods ignore human affairs, or they would have given us justice [Thrasymachus] |
24043 | Soul must be immortal, since it continually moves, like the heavens [Alcmaeon, by Aristotle] |