ranslate these specifications into English whe is busy,} L(j) is {Print job j is lost,} and Q a) p(F(p) ^ B(p)) → ‡jL(j) b) VpB(p) → jQ(j) (c) j(Q(j) ^ L(j)) → pF(p) d) (\pB(P)^\jQ(j)) → =jL(j)

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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3. Translate these specifications into English where F(p) is {Printer p is out of service,} B(p) is {Printer
p is busy,} L(j) is {Print job j is lost,} and Q(j) is { Print job j is queued.}
jL(j)
(a) Ep(F(p) ^ B(p)) →
(b) VpB(p) → jQ (j)
(c) j(Q(j) ^ L(j)) →
pF(p)
(d) (VpB(P) ^VjQ (j)) → jL(j)
Transcribed Image Text:3. Translate these specifications into English where F(p) is {Printer p is out of service,} B(p) is {Printer p is busy,} L(j) is {Print job j is lost,} and Q(j) is { Print job j is queued.} jL(j) (a) Ep(F(p) ^ B(p)) → (b) VpB(p) → jQ (j) (c) j(Q(j) ^ L(j)) → pF(p) (d) (VpB(P) ^VjQ (j)) → jL(j)
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