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2. Regular grammar - Wikipedia

   en.wikipedia.org/wiki/Regular_grammar

   Some authors call this type of grammar a right-regular grammar (or right-linear grammar) [1] and the type above a strictly right-regular grammar (or strictly right-linear grammar). [2] An extended left-regular grammar is one in which all rules obey one of A → w, where A is a non-terminal in N and w is in Σ * A → Bw, where A and B are in N ...

3. Chomsky hierarchy - Wikipedia

   en.wikipedia.org/wiki/Chomsky_hierarchy

   Regular languages are commonly used to define search patterns and the lexical structure of programming languages. For example, the regular language = {| >} is generated by the Type-3 grammar = ({}, {,},,) with the productions being the following. S → aS S → a

4. English grammar - Wikipedia

   en.wikipedia.org/wiki/English_grammar

   The first published English grammar was a Pamphlet for Grammar of 1586, written by William Bullokar with the stated goal of demonstrating that English was just as rule-based as Latin. Bullokar's grammar was faithfully modeled on William Lily's Latin grammar, Rudimenta Grammatices (1534), used in English schools at that time, having been ...

5. Play Just Words Online for Free - AOL.com

   www.aol.com/games/play/masque-publishing/just-words

   Just Words. If you love Scrabble, you'll love the wonderful word game fun of Just Words. Play Just Words free online! By Masque Publishing

6. Words with Friends - Wikipedia

   en.wikipedia.org/wiki/Words_With_Friends

   An iPhone Words with Friends game in progress. The opponent has just played FIE, in the process also forming the word QI, for a score of 17 points.. The rules of the game are mostly the same as those of two-player Scrabble, with a few differences such as the arrangement of premium squares and the distribution and point values of some of the letters (see Scrabble letter distributions and point ...

7. Chomsky normal form - Wikipedia

   en.wikipedia.org/wiki/Chomsky_normal_form

   Obtain an intermediate grammar by replacing each rule A → X 1... X n. by all versions with some nullable X i omitted. By deleting in this grammar each ε-rule, unless its left-hand side is the start symbol, the transformed grammar is obtained. [4]: 90 For example, in the following grammar, with start symbol S 0, S 0 → AbB | C B → AA | AC ...

8. Context-free grammar - Wikipedia

   en.wikipedia.org/wiki/Context-free_grammar

   An extended context-free grammar (or regular right part grammar) is one in which the right-hand side of the production rules is allowed to be a regular expression over the grammar's terminals and nonterminals. Extended context-free grammars describe exactly the context-free languages.

9. Formal language - Wikipedia

   en.wikipedia.org/wiki/Formal_language

   A word over an alphabet can be any finite sequence (i.e., string) of letters. The set of all words over an alphabet Σ is usually denoted by Σ * (using the Kleene star). The length of a word is the number of letters it is composed of. For any alphabet, there is only one word of length 0, the empty word, which is often denoted by e, ε, λ or ...