Answered: Context Free Grammar State whether it…

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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Context Free Grammar

State whether it is ambiguous or unambiguous. If it is ambiguous give an equivalent unambiguous grammar. If it is unambiguous, state all the precedences and associativities enforced by the grammar.

1. <S > -> <S > - <T > | <T > - <S > | <T >
<T > -> N + <T > | N | ( <S >)

Expert Solution

Step 1: Introduce concept

Context Free Grammer

Context-Free Grammar (CFG) is a formal notation used in computer science and linguistics to describe the syntax or structure of languages.
It's a way of specifying how sentences or expressions in a language are constructed from smaller components.
At its core, a CFG consists of a set of production rules that define how symbols (or non-terminals) can be replaced by other symbols or sequences of symbols.
These rules guide the generation or parsing of valid sentences in the language.

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