31. Research into nominal sets gave rise to nominal terms, a metalanguage for embedding object languages with name binding constructs. 32. In English, the natural semantic metalanguage reduces language to a core that enables full development of the English language. 33. These metalanguages have their own metasyntax each composed of terminal symbols, nonterminal symbols, and " metasymbols ". 34. The nature of JetPAG's metalanguage and framework makes it easy and simple to integrate generated recognizers into larger applications. 35. An "'embedded metalanguage "'is a language formally, naturally and firmly fixed in an object language. 36. In logic, a "'metatheorem "'is a statement about a formal system proven in a metalanguage . 37. They can be programmed in their own metalanguages enabling them to compile themselves, making them self-hosting extensible language compilers. 38. Likewise can any complex semantic sentence in English be paraphrased reductively to the core words and syntax of the natural semantic metalanguage . 39. It oftens uses metalanguage by satyrizing the very program on live transmissions, and introducing graphics and sound effects from the subjects. 40. In the natural language we complement the BNF metalanguage by explaining that the digit sequence can have no white space between the digits.
