Exercise 8.1.3: Matrices and arrow diagrams for relations expressed as sets of pairs. O About Draw the arrow diagram and the matrix representation for each relation. (a) Define the set A = {r, o, t, p, c} and B = {proposition, math, proof, discrete). Define the relation RCAX B such that (letter, word) is in the relation if that letter occurs somewhere in the word. (b) The domain for relation R is {1, 2, 3, 4). R = { (1, 2), (3, 4), (2, 3), (3, 2), (2, 1), (3, 1), (4, 3) }. (c) The domain for relation R is {1, 2, 3, 4). R = { (1, 2), (2, 1), (3, 3) }. (d) The domain for relation R is {1, 2, 3}. R = Ø.

Exercise 8.1.3: Matrices and arrow diagrams for relations expressed as sets of pairs. O About Draw the arrow diagram and the matrix representation for each relation. (a) Define the set A = {r, o, t, p, c} and B = {proposition, math, proof, discrete). Define the relation RCAX B such that (letter, word) is in the relation if that letter occurs somewhere in the word. (b) The domain for relation R is {1, 2, 3, 4). R = { (1, 2), (3, 4), (2, 3), (3, 2), (2, 1), (3, 1), (4, 3) }. (c) The domain for relation R is {1, 2, 3, 4). R = { (1, 2), (2, 1), (3, 3) }. (d) The domain for relation R is {1, 2, 3}. R = Ø.

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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PLEASE TYPE ONLY IF NOT YPE THEN DO NOT DO THIS***

ONLY DO (B VIA D) FOR EXERCISE 8.1.3***

Exercise 8.1.3: Matrices and arrow diagrams for relations expressed as sets of pairs.
O About
Draw the arrow diagram and the matrix representation for each relation.
(a) Define the set A = {r, o, t, p, c} and B = {proposition, math, proof, discrete}. Define the relation RSA XB such that (letter, word) is in
the relation if that letter occurs somewhere in the word.
(b) The domain for relation R is {1, 2, 3, 4). R = { (1, 2), (3, 4), (2, 3), (3, 2), (2, 1), (3, 1), (4, 3) }.
(c) The domain for relation R is {1, 2, 3, 4). R = { (1, 2), (2, 1), (3, 3) }.
(d) The domain for relation R is {1, 2, 3}. R = Ø.

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