Question: In ordinary arithmetic, multiplication and division are inverse operation. Are times and divide by inverse operations in the relation algebra?

In ordinary arithmetic, multiplication and division are inverse operation. Are times and divide by inverse operations in the relation algebra?

Step by Step Solution

★★★★★

3.33 Rating (162 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

The short answer is no Cods original DIVIDEBY did satisfy the ... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Document Format (1 attachment)

Word file Icon

CS-DB (58).docx

120 KBs Word File

Students Have Also Explored These Related Databases Questions!

Q:

In ordinary arithmetic there are two special numbers, I and 0, with the properties that n * 1 = 1 * n = n And n * 0 = 0 * n = 0 for all number n. What relations (if any) play analogous roles in the...

Q:

In CPU all the arithmetic operations are performed in binary numbers (0 and 1). Suppose you have a small CPU which is designed to perform all arithmetic operations using addition only. You will...

Q:

An unsymmetrical flexural member consists of a 75mm x 550mm top flange, a 75mm x 400mm bottom flange, and a 12.5mm x 1650m m web. a. Determine the distance from the top of the shape to the horizontal...

Q:

A. B. A. B. ( ( ) ) Beginning and Intermediate Algebra An open source (CC-BY) textbook Available for free download at: http://wallace.ccfaculty.org/book/book.html by Tyler Wallace 1 ISBN...

Q:

9/14/10 12:39 PM Page 381 Chapter dug84356_ch06a.qxd 6 Rational Expressions Advanced technical developments have made sports equipment faster, lighter, and more responsive to the human body. Behind...

Q:

\fCOMPLEX VARIABLES AND APPLICATIONS Eighth Edition James Ward Brown Professor of Mathematics The University of Michigan-Dearborn Ruel V. Churchill Late Professor of Mathematics The University of...

Q:

\fCOMPLEX VARIABLES AND APPLICATIONS Eighth Edition James Ward Brown Professor of Mathematics The University of Michigan-Dearborn Ruel V. Churchill Late Professor of Mathematics The University of...

Q:

Overview For this assignment, write a program that will perform various arithmetic operations. The program should be able to: add two integer values subtract two integer values multiply two integer...

Q:

lesson: 1. Addition "Add h to k" or "the sum of h and k" can be represented as "h + k". 2. Subtraction "Subtract k from h" or "h minus k" can be represented as "h - k". 3. Multiplication "Multiply h...

Q:

Overview For this assignment, write a program that will perform various arithmetic operations. The program should be able to: add two integer values subtract two integer values multiply two integer...

Q:

Attached are several situations involving property transactions. REQUIRED: For each of the situations provided, answer the question asked about the property transaction.

Q:

After visit some FAST FOOD RESTAURANT provide information for the following questions: 1. Material handling in the restaurant for production and services. 2. Type of material handling equipment used...

Q:

Harold H. Heidingsfelder signed a credit agreement as vice president of J. O. H. Construction Co. for a line of credit with Pelican Plumbing Co. The credit agreement contained the following language:...

Q:

(a) At a certain instant, a particle-like object is acted o a force F = (4.0 N)i (2.0 x)i + (9.0N)k while the object's velocity is v = (2.0m/s)i + (4.0m/s)k. What is the instantaneous rate at which...

Q:

A light rigid rod 1.00 m in length joins two particles, with masses 4.00 kg and 3.00 kg, at its ends. The combination rotates in the xy plane about a pivot through the center of the rod (Fig....

Q:

A cylinder with moment of inertia I1 rotates about a vertical, frictionless axle with angular speed i. A second cylinder, this one having moment of inertia I2 and initially not rotating, drops onto...

Q:

A playground merry-go-round of radius R = 2.00 m has a moment of inertia I = 250 kg m2 and is rotating at 10.0 rev/min about a frictionless vertical axle. Facing the axle, a 25.0-kg child hops onto...

Q:

What are the advantages and disadvantages of making the computer network transparent to the user?

Q:

When is a trade deficit likely to work out well for an economy? When is it likely to work out poorly?

Q:

2.5 points QUESTION 53 Which of the following is true of worthless securities? If the securities become worthless at any time during the tax year, the loss is deemed to have occurred on the last day...

Q:

a product that has a variable cost of $2.10 per unit and total fixed cost of $135,000 wants to determine the level of output necessary to avoid losses. a. What level of sales is necessary to...

Q:

Please explain and write readable When sorting through the payroll documents that Mr. Castle gave you, you find the following unentered timesheets for Dan Miller and Gregg Schneider. Timesheet Dec 16...