Abstract
We give an example of a context-free language LO which is not a full generator of the CFL's family though it is expansive and meeting the IRS condition [9]. We get then a counter-example to a conjecture of S. Greibach [9] which can be compared to a positive result dealing with the same questions concerning parenthesis languages [5].
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© 1977 Springer-Verlag Berlin Heidelberg
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Boasson, L. (1977). Un langage algebrique non-generateur. In: Theoretical Computer Science. Lecture Notes in Computer Science, vol 48. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-08138-0_12
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DOI: https://doi.org/10.1007/3-540-08138-0_12
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