In this Wireless Philosophy video, a Yale University philosopher builds on the understanding of necessary and sufficient conditions laid out in her previous video on the topic (youtu.be/5LqNm9d2__I). In addition to providing further illustrative examples, Kelley addresses a new complexity: that our judgments of necessity and sufficiency very often rely on implicit background assumptions. Kelley also tackles the difficult question "What's so important about distinguishing necessary from sufficient conditions anyway?".
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