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Terminal and nonterminal symbols

Terminal and nonterminal symbols

Categories of symbols in formal grammars.

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Readers' pathsAug 2026 – Oct 2026

Readers go next to

Share of the 571 clicks on its links

  1. Formal grammar

    Structure of a formal language.

    19%

  2. Formal language

    Sequence of words formed by specific rules.

    16%

  3. Context-free grammar

    Rule system for formal languages.

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  4. Pushdown automaton

    Type of automaton.

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  5. Chomsky hierarchy

    Hierarchy of classes of formal grammars.

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  6. Symbol (formal)

    Token in a mathematical or logical formula.

    3.5%

  7. Partition of a set

    Mathematical ways to group elements of a set.

    1.9%

Readers come from

Share of the 1,570 readers arriving from another article

  1. Context-free grammar

    Rule system for formal languages.

    24%

  2. Formal grammar

    Structure of a formal language.

    14%

  3. Chomsky hierarchy

    Hierarchy of classes of formal grammars.

    10%

  4. Recursive descent parser

    Top-down parser utilizing recursion.

    7.7%

  5. Formal language

    Sequence of words formed by specific rules.

    2.8%

  6. Parse tree

    Tree in formal language theory.

    2.6%

  7. Syntax

    System responsible for combining morphemes into complex structures.

    0.89%