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Get Full Access to Discrete Mathematics With Applications - 4 Edition - Chapter 3.4 - Problem 19e
Get Full Access to Discrete Mathematics With Applications - 4 Edition - Chapter 3.4 - Problem 19e

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# Rewrite the statement “No good cars are cheap” in the form

ISBN: 9780495391326 48

## Solution for problem 19E Chapter 3.4

Discrete Mathematics with Applications | 4th Edition

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Problem 19E

Problem 19E

Rewrite the statement “No good cars are cheap” in the form “∀x, if P(x) then ~Q(x).” Indicate whether each of the following arguments is valid or invalid, and justify your answers.

a. No good car is cheap.

A Rimbaud is a good car.

∴ A Rimbaud is not cheap.

b. No good car is cheap.

A Simbaru is not cheap.

∴ A Simbaru is a good car.

c. No good car is cheap.

∴ A VX Roadster is not good.

d. No good car is cheap.

An Omnex is not a good car.

∴ An Omnex is cheap.

Step-by-Step Solution:

SOLUTION
Step 1

We have to verify the following arguments are valid or invalid.

Step 2 of 6

Step 3 of 6

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