What is 타당하다, 참이다, 옳다?

In Korean daily usage, 타당하다, 참이다, 옳다 have same meaning when we specify the thing is right or true. In philosophy, they are slightly different senses. 타당하다 is the term used in logic, regardless of its truth-value in informal manner, when some sets of statements are valid in logical relation, it is 타당함. So, it […]

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