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What is a metalanguage?
To understand metalanguage well take a short side trip.
- English has rules about how a sentence is constructed
- Colorless green ideas sleep furiously is an English sentence. (Even if it doesnt mean anything, it follows the rules.)
- Flab red computer autonomous. is not an English sentence.
- A sentence must have at least a noun and a verb.
- Most Indo-European languages have the same basic rules (with some variations)
- If you collect the rules that define how Indo-European languages create sentences, youll have a metalanguage
- You can use this metalanguage to define new languages (say, Klingon)
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