Gettier, philosophy homework help

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2.What are the three necessary conditions for knowledge, according to Ayer’s justified true belief (“JTB”) account? Is Smith justified in believing the one who will get the job has 10 coins in his pocket?

3.)  Why does Gettier argue that JTB’s don’t count as knowledge? How does he challenge the idea that JTB’s count (or suffice as) knowledge? 

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