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Subject Philosophy

DOI: 10.1111/b.9781405106795.2004.x


L ogic, metaphysics [from Latin negare , to say no] As a logical term, negation is contrasted to affirmation and the positive and denies either a proposition as a whole or a predicate within a proposition. The standard sign of negation is ⌝. In standard logic, a proposition and its negation form a contradiction: both can not be true and both can not be false. The truth of one implies the falsehood of the other. If a proposition is true, its negation must be false, and vice versa. A predicate and its negation are also contradictory. Negation is thus a truth-functional operator , so that we can know the truth-value of a proposition formed by the negation of an initial proposition if we know the truth-value of the initial proposition. In Hegel's philosophy, negation is mainly a feature of concepts or things. Following Spinoza 's idea that all determination is negation, Hegel claimed that negation is also a way of determining what it negates and hence has a positive result. “Negation is no longer an abstract nothing, but as a determinate being and somewhat, is only a form of such being - it is as otherness.” Hegel, Logic ... log in or subscribe to read full text

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