“positive fragment”的概念、定义、翻译、参考文献-科学参考

单词	positive fragment
释义	positive fragment Logic A fragment of a deductive system or a theory permitting only formulae that are considered ‘positive’ in some sense. Frequently, this merely means that there are no instances of a negation symbol $\neg$ in any formulae.
随便看	Hund coupling cases Hund, Friedrich (1896–1997) hundred Hundred Days (20 March–28 June 1815) Hundred Days Reform (1898) Hundred Flowers Movement (1956–57) Hundred Years War Hund’s rules Hungaria group Hungarian Revolution (23 October–4 November 1956) Hungary hunger Hunger Vulnerability Index Hungry Forties Huns Hunter process hunter’s Moon Hunt, Henry (1773–1835) hunting hunting and gathering Huntsman process Huron Huronian hurricane Hurricane Katrina (2005)

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