Use the following building blocks in the right column to assemble a direct proof that the product of two odd numbers is odd. Not all blocks belong in the proof.
Use the following building blocks in the right column to assemble a direct proof that the product of two odd numbers is odd. Not all blocks belong in the proof.
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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Use the following building blocks in the right column to assemble a direct proof that the product of two odd numbers is odd.
Not all blocks belong in the proof.
![Use the following building blocks in the right column to assemble a direct proof that the product of two odd numbers is
odd.
Not all blocks belong in the proof.
Suppose that n and m are odd numbers.
By multiplying these equations,
we obtain nm (2k + 1)(2q + 1).
By definition of an odd integer, that means that nm is odd.
Then n = 2k + 1 and m = 2k + 1 for some integer k.
Suppose that the product of two odd numbers is odd.
Distributing, we get nm=2(2kq +k+q) + 1.
Then n = 2k + 1 for some integer k and
m = 2q + 1 for some integer q.
Suppose that nm is odd.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffe488bf4-ebd7-4956-8308-f4f73186902c%2Fba2a4070-715e-40ca-93e8-af5a8084ea72%2Fpwqycpi_processed.png&w=3840&q=75)
Transcribed Image Text:Use the following building blocks in the right column to assemble a direct proof that the product of two odd numbers is
odd.
Not all blocks belong in the proof.
Suppose that n and m are odd numbers.
By multiplying these equations,
we obtain nm (2k + 1)(2q + 1).
By definition of an odd integer, that means that nm is odd.
Then n = 2k + 1 and m = 2k + 1 for some integer k.
Suppose that the product of two odd numbers is odd.
Distributing, we get nm=2(2kq +k+q) + 1.
Then n = 2k + 1 for some integer k and
m = 2q + 1 for some integer q.
Suppose that nm is odd.
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