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Definition of Transposition: Suppose that $X$ is a set. A transposition of $X$ is a function $f \colon X \rightarrow X$, such that there exist two distinct elements $a,b \in X$, such that:
- For all $x \in X$, if $x \neq a$ and $x \neq b$, then $f(x) = x$.
- $f(a) = b$.
- $f(b) = a$.
This definition logically relies on the following definitions and statements:
The following statements and definitions logically rely on the material of this page: Def/Sign of a permutation, State/Permutations can be decomposed into transpositions, and State/Uniqueness of prime factorization
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