In discussing any branch of mathematics, be it analysis, algebra, or geometry, it is helpful to use the notation and terminology of set theory.

在讨论数学的任何分支时，无论是分析，代数或分析，利用集合论的记号和术语是有帮助的。

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But, says from the essence, the livelihood of the people news also merely is the field one kind of theory terminology, is one kind of temporary theory summary.

但是，从本质上来讲，民生新闻还仅仅是业界的一种理论术语，是一种暂时的理论概括。

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Music theory is included temperament, notation, tuning, festival Qin, speed and intensity of music and music terminology of music theory knowledge.

音乐理论是指包含音律，记谱，调式，节秦，音乐速度与力度，以及音乐术语等的音乐理论知识。

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