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Definition of Fixed set
1. Noun. (mathematics) A set which is unchanged by a function or other mapping. Formally: a set, S, is a fixed set of a function, f, if and only if for all x in S, f(x)=x. ¹
¹ Source: wiktionary.com
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1. Noun. (mathematics) A set which is unchanged by a function or other mapping. Formally: a set, S, is a fixed set of a function, f, if and only if for all x in S, f(x)=x. ¹
¹ Source: wiktionary.com