北京邮电大学软件学院 郭文明 2003.06 《数据库设计与开发》讲义 • Armstrong公理的一些逻辑蕴涵: –合并规则(Union rule):如果X→Y且X→Z,那么X→YZ。 –分解规则(Decomposition rule):如果X→YZ,那么 X→Y且X→Z。
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Also determined is a measure of the degree to which all applications are supported by a compromise parameter determined by the union rule.
还确定通过所述联合规则确定的折衷参数支持全部应用程序的程度的量度。
New laws in both regions—a rule known as Reg NMS in America, and MiFID in the European Union—are pushing them toward greater transparency and competition.
在这两个地方,新法令——在美国被称为国家市场系统管理规则(Reg NMS),而在欧盟则被称为金融工具市场法规(MiFID)——都在推动交易所更加透明度、更具竞争力。
For a union that swears by the rule of law but has big strategic ambitions, that is an unacknowledged dilemma.
对于仅获得法律承认,却未实现更大战略意图的欧盟而言,真是有苦难言,进退两难。
In remarks to reporters, German Defense Minister Franz Joseph Jung suggested that security would be beefed up with the recent deployment of a European Union Rule of Law Mission in Kosovo,or EULEX, and the expansion of Kosovo's own security force in the coming months.
VOA: standard.2009.06.11
The meeting violated a long-standing rule of Egypt's press syndicate, or union,that forbids any contact between its members and Israelis.
VOA: standard.2009.10.08
The European Union suspended aid because it says the government is committing "grave violations" of the rule of law and democratic values.
VOA: standard.2009.08.14
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