Answered: habet is E = {a, b, c, d} Is the…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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The alphabet is

E = {a, b, c, d}

Is the below language B context-free or non-context free? If B is context-free, give a context-free grammar that generates B. If B is non-context free, using the pumping lemma prove that B is not context-free.

B = {a²ⁱ⁺¹b^2k+2c^3k+1d³ⁱ⁺²| i >= 1, k >= 1}

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