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14094 | The excellent notion of metaphysical 'necessity' cannot be defined [Rosen] |
Full Idea: Many of our best words in philosophy do not admit of definition, the notion of metaphysical 'necessity' being one pertinent example. | |
From: Gideon Rosen (Metaphysical Dependence [2010], 03) | |
A reaction: Rosen is busy defending words in metaphysics which cannot be pinned down with logical rigour. We are allowed to write □ for 'necessary', and it is accepted by logicians as being stable in a language. |