Preorder
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Preorder --- предпорядок.
A binary relation on [math]\displaystyle{ \{1,2, \ldots, n\} }[/math] is a preorder, if it is reflexive and transitive.
Preorder --- предпорядок.
A binary relation on [math]\displaystyle{ \{1,2, \ldots, n\} }[/math] is a preorder, if it is reflexive and transitive.