Does AG(req -> AF busy) hold in all initial states for the following model (Fig.1)? Why or why not? Clearly state the reason that backs up your conclusion.

Oracle 12c: SQL
3rd Edition
ISBN:9781305251038
Author:Joan Casteel
Publisher:Joan Casteel
Chapter1: Overview Of Database Concepts
Section: Chapter Questions
Problem 4RQ
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Does AG(req -> AF busy) hold in all initial states for the following model
(Fig.1)? Why or why not? Clearly state the reason that backs up your conclusion.

req
ready
req
busy
¬req
ready
¬req
busy
Transcribed Image Text:req ready req busy ¬req ready ¬req busy
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