Definition: Plenisms are a type of mathematical notation used in abstract algebra to represent sets. They are often associated with the concept of "plenity," which is the property that every element in a set belongs to exactly one proper subset. A plenism consists of several elements, each of which can be further divided into smaller subsets. For example, if we have an abstract set A consisting of 3 elements {a, b, c}, then we could represent it as: ``` |
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