Select the equivalence relation. Select all the applies. □ If A={1,2,3}, then relation R:A →A such that R={(1,3),(3,3),(1,1),(2,2),(3,1)} If N={1,2,3,...}, then relation R:N→N such that R={(a,b)| a=b} □ If N={1,2,3,...}, then relation R:N→N such that R={(a,b)| a>b} □ If N={1,2,3,...}, then relation R:N→N such that R={(a,b)| a ≤ b} If A={1,2}, then relation R:A→A such that R={(1,2),(2,1)} If A is the set of all pentagons, then relation R:A→A such that R={(a,b)|a is similar to b}
Select the equivalence relation. Select all the applies. □ If A={1,2,3}, then relation R:A →A such that R={(1,3),(3,3),(1,1),(2,2),(3,1)} If N={1,2,3,...}, then relation R:N→N such that R={(a,b)| a=b} □ If N={1,2,3,...}, then relation R:N→N such that R={(a,b)| a>b} □ If N={1,2,3,...}, then relation R:N→N such that R={(a,b)| a ≤ b} If A={1,2}, then relation R:A→A such that R={(1,2),(2,1)} If A is the set of all pentagons, then relation R:A→A such that R={(a,b)|a is similar to b}
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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Transcribed Image Text:Select the equivalence relation. Select all the applies.
□ If A={1,2,3}, then relation R:A →A such that R={(1,3),(3,3),(1,1),(2,2),(3,1)}
If N={1,2,3,...}, then relation R:N→N such that R={(a,b)| a=b}
□ If N={1,2,3,...}, then relation R:N→N such that R={(a,b)| a>b}
□ If N={1,2,3,...}, then relation R:N→N such that R={(a,b)| a ≤ b}
If A={1,2}, then relation R:A→A such that R={(1,2),(2,1)}
If A is the set of all pentagons, then relation R:A→A such that R={(a,b)|a is similar to b}
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