Consider the following grammar for representing simple calculations in Polish notation, given by G = (V,E,R, E) where • V = {E,M,N,I} E = {+,*,-,0,1,2, x, y} • R consists of the rules: +EE | * EE | – E | K | I → 0 |1| 2 → x | y E K I Is G ambiguous? Justify your answer.

Consider the following grammar for representing simple calculations in Polish notation, given by G = (V,E,R, E) where • V = {E,M,N,I} E = {+,,-,0,1,2, x, y} • R consists of the rules: +EE | EE | – E | K | I → 0 |1| 2 → x | y E K I Is G ambiguous? Justify your answer.

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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Question

Consider the following grammar for representing simple calculations in Polish notation, given by G =
(V,E,R,E) where
V = {E,M, N,I}
• E = {+,*,-,0,1,2, x, y}
• R consists of the rules:
+EE | * EE | – E | K | I
o | 1 | 2
х | у
E
K
I
Is G ambiguous? Justify your answer.
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