PHI 3170 Lecture Notes - Lecture 7: Counterexample, University Of Florida

• School: University of Ottawa
• Department: Philosophy
• Course: PHI 3170
• Professor: Daniel Kofman

Document Summary

Refute the necessity claim able to unlock the device without the person"s finger (hacker"s claim refutes the necessity claim that the finger is necessary to unlock the device. Refute the sufficiency claim - sometimes the device won"t unlock using your finger. If you say jtb is sufficient for knowledge (jtb kn) Counterexample: satisfy conditions and show there is no knowledge - you have a justified true belief, but no knowledge (gettier examples) People who uphold the tripartite account of knowledge claim that knowledge necessarily means the belief is true and justified. Counterexample: show knowledge without satisfying the conditions - find some knowledge that does not have all three components of jtb. Gettier examples: the doctor will cure me, making it to class on time, evelyn the iguana. Modifies or supplements an account of knowledge as to be immune to gettier counterexamples. Gettier beliefs are not satisfied therefore not knowledge.