The image is the non-deterministic PDA ,Give CFG for all strings of this

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
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The image is the non-deterministic PDA ,Give CFG for all strings of this language

PUSH X
ACCEPT
A
POP
START
READ
E
READ
E
READ
1
2
X
Pop
X
POP
Transcribed Image Text:PUSH X ACCEPT A POP START READ E READ E READ 1 2 X Pop X POP
Expert Solution
Step 1: Introduction to NPDA

Let M = (Q,∑,Γ,q0, Z,F ,δ) be a PDA. If one of the below-given conditions fails, the PDA is non-deterministic.

  1. δ(q, a,  Z) has one element.
  2. If δ(q, ∈,  Z) is non-empty, then δ(q, c,  Z) is empty for every c ∈ ∑


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