Let R be a relation on A = {0, 2, 3, 7} and R = {(7,7), (3, 3), (0, 2), (2, 0), (2, 2), (0, 0)}. Are the following statements true or false???????1. R is reflexive✓2. R is anti-symmetric3. R is symmetric4. R is a partial order✓5. R is transitiveV 6. R is an equivalence relation

SOLUTION- Given, A ={0,2,37} and R={(7,7),(3,3),(0,2),(2,0),(2,2),(0,0)} 1)True A relation R…

Let R be a relation on A = {0, 2, 3, 7} and R = {(7,7), (3, 3), (0, 2), (2, 0), (2, 2), (0, 0)}. Are the following statements true or false? ? ? ? ? ? ? V V V V 1. R is reflexive 2. R is anti-symmetric 3. R is symmetric 4. R is a partial order 5. R is transitive 6. R is an equivalence relation

Let R be a relation on A = {0, 2, 3, 7} and R = {(7,7), (3, 3), (0, 2), (2, 0), (2, 2), (0, 0)}. Are the following statements true or false? ? ? ? ? ? ? V V V V 1. R is reflexive 2. R is anti-symmetric 3. R is symmetric 4. R is a partial order 5. R is transitive 6. R is an equivalence relation

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

See similar textbooks

Similar questions

v) Choose all the functional dependencies that holds in the following table a. A>B b. B>C A B |C f e f i c. B>A d. A→C e i e. C→B g h k
Alert dont submit AI generated answer. please explain in details.
Given the relation T below, use ordered pair notation to express the relation To T. ToT { Ex: (a, b), (b, c) b Lo a с } T
The following two relations R and S have one attribute storing integers. Assume that a join is performed on this attribute. R = { 4, 3, 1, 6, 2, 9, 0, 5, 8, 7 } S = { 3, 4, 5, 8, 0, 2, 1, 6, 7, 9} Show the order of tuples output for the following join algorithms: (for example Sort Join would give (0,0), (1,1),...,(9,9) ) 1.One pass join where M=12 and R is put in memory: 2.Merge-sort-join with M=5: 3.Hash Join with three buckets and M=4. Assume R is the build relation and S is the probe relation. Also assume bucket 0 is output first. Output:
Let R be a relation on A = {0, 1, 6, 8} and R = {(0,0), (8, 6), (6, 6), (8, 8), (1, 1), (1,0), (0, 1)}. Are the following statements true or false? 1. R is symmetric ? ? ? ? ? ? V V 2. R is transitive 3. R is reflexive 4. R is an equivalence relation 5. R is anti-symmetric 6. R is a partial order
Struggling on this problem, I can see that it's incorrect and am close but I'm overlooking the flaw in reasoning somewhere.
a) Define a relation R on R (the set of all real numbers) as follows: For all x, y E R, xRy → x < y. Is R reflexive, symmetric and transitive?
Determine which of these relations are reflexive. The variables x,y,x',y' represent integers. A. x~y if and only if x+y is even B. x~y if and only if x+y is odd C. x~y if and only if x+y is positive D. x~y if and only if xy is positive E. x~y if and only if x-y is a multiple of 10
Question 20 Please fill in the blank correctly.
QUESTION 8 Is relation R on set of all integers reflexive? (xRy if x+y is odd) True O False CS Scanned with CamScanner
it says relation hotel already exist
write a recurrence relation to model this situation