Q.No.1. In CFG, sometimes all the production rules and symbols are not needed for the derivation of strings. Beside this, there may also be some NULL Productions and UNIT Productions. Elimination of these productions and symbols is called simplification of CFG. Simplification consists of the following steps. Reduction of CFG. Removal of Unit Productions. Removal of NULL Productions. So Simplify the Given CFG S→ bS | aA | dD| aF A→ bA | aF|a| F→ bF | b |

Q.No.1. In CFG, sometimes all the production rules and symbols are not needed for the derivation of strings. Beside this, there may also be some NULL Productions and UNIT Productions. Elimination of these productions and symbols is called simplification of CFG. Simplification consists of the following steps. Reduction of CFG. Removal of Unit Productions. Removal of NULL Productions. So Simplify the Given CFG S→ bS | aA | dD| aF A→ bA | aF|a| F→ bF | b |

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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