Introduction to Sets 0.0 / 5 ? PhilosophysetsUniversityNone Created by: A. PersonCreated on: 17-02-16 20:08 Why is a set not the fusion/sum of its objects? The axiom of extensionality. If a set were a fusion/sum, it might contain additional members. 1 of 7 Intersection All members in common 2 of 7 Union Combining of all members of two or more sets 3 of 7 Subsethood X is a subset of Y when all members of X are members of Y 4 of 7 Proper subset X is a proper subset of Y when Y contains some members X doesn't contain. 5 of 7 Comprehension Principle For any condition, there's a set consisting of the objects which satisfy it. 6 of 7 What demonstrates the inconsistency of the comprehension principle? Russell's Paradox 7 of 7
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