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    Formal System: Syntax and Semantics: Validity of strings

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    Strings
    Given the following grammar

    S -> A
    S -> B
    A -> aCbA
    A -> ab
    B -> BCC
    B -> a
    C -> ba

    which strings are valid?

    a
    ab
    aba
    abab
    ababa
    abababa
    abababab
    ababababab

    © BrainMass Inc. brainmass.com October 9, 2019, 5:07 pm ad1c9bdddf
    https://brainmass.com/computer-science/web-design/formal-system-syntax-and-semantics-validity-of-strings-48399

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    Solution Summary

    Validity of strings is considered. Syntax and Semantics are also considered in the Formal System.
    The solution is detailed and well presented.

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