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此次裁決源自田納西州一家過濾設備公司「阿特穆斯過濾技術」（Atmus Filtration）提出的訴訟，但法官表示，他將是唯一有權審理有關退稅案件的法官。
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He added that the US has a “virtually unlimited supply of these weapons”, meaning that “wars can be fought ‘forever’”.
Commutativity and associativity might sound the same, and indeed most commutative operations are also associative. But there are a few math operations that are only one or the other. Matrix multiplication, for example, is associative but not commutative Matrix multiplication - Wikipedia en.wikipedia.org/wiki/Matrix_multiplication#Non-commutativity . And surprisingly, floating point arithmetic — i.e. any math operator in JavaScript — is commutative but not associative Associative property - Wikipedia en.wikipedia.org/wiki/Associative_property#Nonassociativity_of_floating_point_calculation ! ↩