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Reference.org
Programming language theory
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<p>Programming language theory (PLT) is a branch of <a href="/facts/Computer_science/lN3pEyPz">computer science</a> that deals with the design, implementation, analysis, characterization, and classification of <a href="/facts/Formal_language/crDTyP8q">formal languages</a> known as <a href="/facts/Programming_language/cWTYbgWa">programming languages</a>. Programming language theory is closely related to other fields including <a href="/facts/Linguistics/oQuamvf2">linguistics</a>, <a href="/facts/Mathematics/pxTouaz4">mathematics</a>, and <a href="/facts/Software_engineering/KX6cE9kz">software engineering</a>. </p>