Let S(x) = "x is a student at Leeward Community College"; F(x) = "x is a faculty member at Leeward Community College", and E(x,y) "x has eaten y at the Leeward Community College cafeteria" where the universe of discourse for x is all the people who are associated with Leeward Community College, and the universe for discourse for y is the menu items in the Leeward Community College cafeteria. a. Translate into English: x (S(x) -> E(x, y)) b. Translate into symbols: Every Leeward CC faculty member has eaten at least one menu item at the Leeward Community College cafeteria.

Let S(x) = "x is a student at Leeward Community College"; F(x) = "x is a faculty member at Leeward Community College", and E(x,y) "x has eaten y at the Leeward Community College cafeteria" where the universe of discourse for x is all the people who are associated with Leeward Community College, and the universe for discourse for y is the menu items in the Leeward Community College cafeteria. a. Translate into English: x (S(x) -> E(x, y)) b. Translate into symbols: Every Leeward CC faculty member has eaten at least one menu item at the Leeward Community College cafeteria.

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

Let S(x,y) be the statement "student x likes soft drink y" , where the domain for x consists of all students at your school and the domain for y consists of all soft drinks. Use quantifiers to express "Not every student likes tea and soda." 5.
Let I(x) be the statement "x has an Internet connection" and C(x, y) be the statement "x and y have chatted over the Internet," where the domain for the variables x and y consists of all students in your class. Use quantifiers to express each of these statements. i) Everyone in your class with an Internet connection has chatted over the Internet with at least one other student in your class. ii) Someone in your class has an Internet connection but has not chatted with anyone else in your class. Express each of these system specification using predicates, quantifiers and logical operators if necessary. i) There are at least two paths connecting every two distinct end points of the network. ii) No one knows the password of every user except for the system administrator who knows all password.
Ql: The Collatz conjecture function is defined for a positive integer m as follows. (COO1) g(m) = 3m+1 if m is odd = m/2 if m is even =1 if m=1 The repeated application of the Collatz conjecture function, as follows: g(n), g(g(n)), g(g(g(n))), ... e.g. If m=17, the sequence is 1. g(17) = 52 2. g(52) = 26 3. g(26) = 13 4. g(13) = 40 5. g(40) = 20 6. g(20) = 10 7. g(10) = 5 8. g(5) = 16 9. g(16) = 8 10. g(8) = 4 11. g(4) = 2 12. g(2) = 1 Thus if m=17, apply the function 12 times in order to reach m=1. Use Recursive Function.
Let Q(x, y) be the statement "Student x has taken class y," where the domain for x consists of all students in your class and for y consists of all computer science courses at your school. Express each of these quantifications in English. i. 3x3yQ(x, y) ii. 3xvyQ(x, y) iii. ayQ(x, y) 3YVXQ(x, y) VyaxQ(x, y) iv. v. vi. (a x)OKAXA
Let P(X) = “x ate lunch at Jollibee” and S(x) = “x is a Leeward CC Student” 5. Assume the universe of discourse is all people. Translate into symbols, “All Leeward Community College students ate lunch at Jollibee.” 6. Using symbols, express the negation of number 5
A deck of cards contains 52 cards with four suits: club, diamond, heart and spade ranging in values from 2, ... to 10, Jack, Queen, King and Ace. Ace has the highest value in the same suit. Cards can be compared using their face values. A card with higher face value is bigger than a card with lower face value. If two cards have the same face value, then the suit determines the order. Club is smaller than diamond which is smaller than heart which is smaller than spade. For example: club 2 < diamond 2 < heart 2 < spade 2 if compared.Write an interactive Java program that allows you play cards with a computer. For this project, we are going to focus on one suit of the deck of cards. There are only 13 cards (value: 2, ... to 10, Jack, Queen, King and Ace) in a suit. To play:(a). You first pick a suit at random from the four suits (club, diamond, heart and spade), and display the suit. (b) Then you randomly draw a card from the suit, and let computer draw a card from the same…
A deck of cards contains 52 cards with four suits: club, diamond, heart and spade ranging in values from 2, ... to 10, Jack, Queen, King and Ace. Ace has the highest value in the same suit. Cards can be compared using the face value. A card with higher face value is bigger than a card with lower face value. If two cards have the same face value, then the suit determines the order. Club is smaller than diamond which is smaller than heart which is smaller than spade. For example: club 2 < diamond 2 < heart 2 < spade 2 if compared. Write an interactive Java program that allows a user to randomly pick a card from the deck of 52 cards (using a random number between 1 and 4 to represent the four suits: club, diamond, heart and spade and then another random number to represent the face value) to play. Show the suit and face value of the user card. Then the program acts as a card dealer which randomly draws another card and displays the card (again showing the suit and face value of…
You are the chief commander of US Army; you have been deployed in an ongoing war training of defusing the mine. Mines are placed on the ground which can be considered as a gird of size N*M. Each block (i, j) has a mine in it if and only if the summation of the block coordinates is divisible by 2. Your task is to move from the first row to the last row. The mines will not blow if the given rules are followed: • If you are on even row you can move to any cell that is in the neighborhood • If you are on odd row, you can only go the odd row that has mine on that and same with the unmined row. You have to develop a python program to calculate the number of ways to reach row number N starting from row number 1. Test Cases: 4 8 Output: 10
Scenario:One of the renowned supermarket in Dhaka City, “Shwapno” is celebrating their firstanniversary of opening. They have become very popular among people in a short amount oftime. As a method of celebration they have designed three interesting and exciting offer for theircustomers for that day only!! The offers are described as follows:Offer 1: This offer says, if the name of any customer starts with “S” OR ends with “o”, theywill receive a gift which contains 1 kg miniket rice and 1 litre soyabean oil. This offer isdedicated from their name, Shwapno.Offer 2: This offer says, if one customer have taken products and his/her total product weightis less than 1.50 kg, then Shwapno will give all the products to the customer for free. If the totalweight is 1.50 kg or more, the customer will have to pay the full amount.Offer 3: This offer says, if a customer is aged less than 15, then he/she will receive chocolates.If aged 15 or more, then no gifts for the customer.Implementation:Create…
A school has 100 lockers and 100 students. All lockers are closed on the first day of school. As the students enter, the first student, denoted as S1, opens every locker. Then the second student, S2, begins with the second locker, denoted as L2, and closes every other locker. Student S3 begins with the third locker and changes every third locker (closes it if it was open and opens it if it was closed). Student S4 begins with locker L4 and changes every fourth locker. Student S5 starts with L5 and changes every fifth locker, and so on, until student S100 changes L100. After all the students have passed through the building and changed the lockers, which lockers are open? Write a program to find your answer and display all open locker numbers separated by exactly one space. (Hint: Use an array of 100 Boolean elements, each of which indicates whether a locker is open (true) or closed (false). Initially, all lockers are closed.)
A performance venue hosts many concerts a year. Performers perform several times a year for the concerts. Each concert has one or more performers and has a name and a specified seating arrangement. A concert is held in one (and only one) of several concert halls, each of which has a room number and the number of seats. Each concert generates revenues from the sales of tickets. Assume that the price of the ticket is the same for the same concert, but different prices for different concerts.Identify several attributes and a key field for each entity. Represent this situation of concerts and performers with an E-R diagram
Let A = {1, 2,3} and B = {a, b, c, d} What is the function from a to b?