PHL 101 Lecture Notes - Lecture 6: A Priori And A Posteriori, Natural Kind, If And Only If

• School: University of Rochester
• Department: Philosophy
• Course: PHL 101
• Professor: Hayley Clatterbuck

Document Summary

Descartes: if knowledge requires certainty and evidence for any p over ~p, then we cannot know anything at all. We cannot trust our sense; at best we can trust our clear and disinct ideas. Hume: we are not jusiied in believing the future will be like the past or believing in any necessary causal connecions. Nature will always maintain her rights are prevailing in the end over any abstract reasoning whatsoever. Past to future: the sun has risen every day for the past 2000 years. In a sample of 828 republican voters in ohio, 33% said they intend to vote for kasich. C: therefore, 33% of republican voters in ohio intend to vote for kasich. Sample to sample: the irst ten beers from this barrel were all good. C: the next ten beers from this barrel will be good. The course of nature coninues uniformly the same. From causes which appear similar, we expect similar efects.