Indicate the rules of inference used and the corresponding premises used

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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Indicate the rules of inference used and the corresponding premises used 

Premises: ~(r vs), p→s, p→q. Prove: q.
~(r V s)
~ps
1
2
3
4
5
6
7
8
P→q
~^~s
~S
~(~p)
P
q
Premise
Premise
Premise
Transcribed Image Text:Premises: ~(r vs), p→s, p→q. Prove: q. ~(r V s) ~ps 1 2 3 4 5 6 7 8 P→q ~^~s ~S ~(~p) P q Premise Premise Premise
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