出典:Wikipedia
出典:『Wikipedia』 (2011/05/13 06:23 UTC 版)
In mathematics, especially in order theory, preorders are binary relations that are reflexive and transitive.
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to give orders for advance
place an order for
an act of having something made to order
to give orders for advance
受注した
to reduce anything to order―systematize―methodize
to go through due formalities
to give orders for advance
an act of having something made to order
place an order for