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en.wikipedia.org/wiki/Formal_language_theory
In mathematics, computer science, and linguistics, a formal language is a set of strings of symbols that may be constrained by rules that are specific to it.

encyclopedia2.thefreedictionary.com/Formal+language+theory
formal language [¦fȯr·məl ′laŋ·gwij] (computer science) An abstract mathematical object used to model the syntax of a programming or natural language.

www.ncbi.nlm.nih.gov/pmc/articles/PMC3367686
1. Introduction. The field of formal language theory (FLT)—initiated by Noam Chomsky in the 1950s, building on earlier work by Axel Thue, Alan Turing and Emil Post ...

www.thefreedictionary.com/Formal+language+theory
As in formal language theory there is a key difference between deterministic and nondeterministic finite state machines in probabilistic case.

www.sciencedirect.com/science/book/9780121153502
The online version of Formal Language Theory by Ronald V. Book on ScienceDirect.com, the world's leading platform for high quality peerreviewed fulltext books.

simple.wikipedia.org/wiki/Formal_language
The mathematical theory that treats formal languages in general is known as formal language theory.

en.wikipedia.org/wiki/Grammar_(formal_language_theory)
In formal language theory, a grammar (when the context is not given, often called a formal grammar for clarity) is a set of production rules for strings in a formal ...

www.its.caltech.edu/~matilde/FormalLanguageTheory.pdf
CHAPTER 6. FORMAL LANGUAGE THEORY 95 the strings, but languages by deﬁnition need not be ﬁnite. In fact, all of the languages we are interested in are inﬁnite.

books.google.com/books/about/Introduction_to_Formal_Language_Theory.html
Formal language theory was fist developed in the mid 1950's in an attempt to develop theories of natural language acquisition. It was soon realized that this theory ...

www.encyclopedia.com/doc/1O11formallanguagetheory.html
Definition of formal language theory – Our online dictionary has formal language theory information from A Dictionary of Computing dictionary. Encyclopedia.com ...