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Wasserman, Nicholas – For the Learning of Mathematics, 2019
In combinatorics, combinatorial notation, e.g., C(n, r), is explicitly defined as a numerical value, a cardinality. Yet, we do not use another symbol to signify the set of outcomes--the collection of objects being referenced, whose cardinality is, for example, C(n, r). For an expert, this duality in notation, of signifying both cardinality and…
Descriptors: Mathematics Education, Mathematical Concepts, Symbols (Mathematics), Equations (Mathematics)