WEBVTT

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※ 본래 본 강의에선 오직 영어에만 국한되어 해당하는 설명이 등장합니다

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안녕하세요, 저는 매튜 해리스입니다

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듀크 대학의 철학과 대학원생이구요

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오늘은 형식적 오류 중 하나인

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후건 긍정의 오류를 살펴보고

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땅콩 버터 목욕을 해야 할지 말아야 할지

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항상 결정내릴 수는 없다는 것을 알아보겠습니다

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후건 긍정의 오류는

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조건문의 참과 후건의 참으로부터
전건의 참을 추론하고자 할 때 발생합니다

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이게 무슨 뜻인지 좀더 자세히 살펴보죠

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논리적 오류엔 두가지 유형이 있습니다

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형식적 오류, 그리고 비형식적 오류.

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둘 모두 잘못된 논증 방식에 해당하죠

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비형식적 오류란

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그 내용상 결점으로 인해

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결론을 지지하는데 문제가 있는 오류입니다

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형식적 오류란

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후건 긍정의 오류가 그러하듯

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논증의 형식상 문제가 있으며

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타당하지 못한 논증입니다

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초점을 분명히 하기 위해 몇 가지 정의를 제시하고 넘어가죠

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우린 늘상 조건문을 쓰고는 합니다

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조건문은 쉽게 알아볼 수 있는 것이

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대개 다음과 같은 형식을 띠기 때문이죠.

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"만약 P면, Q다"

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이때 P를 "전건"이라고 부릅니다

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(번안: 한국어의 경우 전건의 앞에는)

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(번안:

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