Building off of a paper by this thinker, Keith Lehrer imagined possible “defeaters” like Tom Grabit stealing from a library. Richard Feldman argued that early attempts to refute this thinker with the “no-false premise” proposal had failed. A paper by this thinker prompted Alvin Goldman to propose a condition of “appropriate causality” by imagining seeing barn façades on a country (10[1])road. Roderick (10[1])Chisholm formulated an argument about a dog that looks like a sheep after this thinker directly cited Chisholm’s conditions regarding sufficient evidence for S knowing P. This thinker is best known for a three-page article imagining Jones getting a job offer while having 10 coins in his pocket. (10[1])For 10 points, name this American thinker who challenged the definition of knowledge as “justified true belief” with his namesake cases. ■END■