| 21. | The first case belongs to the metalanguage whereas the second is more likely to belong to the object language.
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| 22. | These changes made that META II and its derivative programming languages able to define and extend their own metalanguage.
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| 23. | Any language that one uses to talk about a formal system is called a " metalanguage ".
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| 24. | Mathematical logic and linguistics make use of metalanguages, which are languages for describing the nature of other languages.
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| 25. | The language used for studying, analyzing, and describing a language is a " metalanguage ".
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| 26. | In Computer Science the specialized metalanguages ( a higher level abstraction ) specifically designed for the purpose of metaprogramming.
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| 27. | Many spin-off metalanguages were inspired by BNF . See META II, TREE-META, and Metacompiler.
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| 28. | To define a truth predicate for the metalanguage would require a still higher " metametalanguage ", and so on.
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| 29. | Such a classification scheme is the precursor of modern distinctions between use and mention, and between language and metalanguage.
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| 30. | The metaprogramming metalanguage is a powerful attribute allowing the ease of development of computer programming languages and other computer tools.
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