Question

A. Indicate whether the following are true or false: 1. Any factually correct argument with a false conclusion is not valid. 2. Any sound argument has a true conclusion. 3. Any argument with a true conclusion is valid. 4. Some sound arguments have at least one false premise. 5. Any valid argument with a true conclusion is factually correct. B. For each of the following arguments, indicate whether the argument is (1) valid, (2) factually correct (if it is possible to say), and (3) sound (if it is possible to say). 6. All mammals are warm-blooded. All birds are warm-blooded. All birds are mammals. 7. All instructors in this logic class have no more than one head. Persons with more than one head cannot do logic. No instructor in this class can do logic. 8. Elvis Presley is dead. Elvis Presley is not dead. Pigs fly. C. Give counterexamples to the following arguments: 9. All magpies are birds. All the animals in my backyard are birds. Some magpies are animals in my backyard. 10. Some ostriches are shy. No dugongs fail to be shy. Some ostriches are dugongs.

          A. Indicate whether the following are true or false:
1. Any factually correct argument with a false conclusion is not valid.
2. Any sound argument has a true conclusion.
3. Any argument with a true conclusion is valid.
4. Some sound arguments have at least one false premise.
5. Any valid argument with a true conclusion is factually correct.
B. For each of the following arguments, indicate whether the argument is (1) valid, (2)
factually correct (if it is possible to say), and (3) sound (if it is possible to say).
6.
All mammals are warm-blooded.
All birds are warm-blooded.
All birds are mammals.
7.
All instructors in this logic class have no more than one head.
Persons with more than one head cannot do logic.
No instructor in this class can do logic.
8.
Elvis Presley is dead.
Elvis Presley is not dead.
Pigs fly.
C. Give counterexamples to the following arguments:
9.
All magpies are birds.
All the animals in my backyard are birds.
Some magpies are animals in my backyard.
10.
Some ostriches are shy.
No dugongs fail to be shy.
Some ostriches are dugongs.

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A. Indicate whether the following are true or false:
1. Any factually correct argument with a false conclusion is not valid.
2. Any sound argument has a true conclusion.
3. Any argument with a true conclusion is valid.
4. Some sound arguments have at least one false premise.
5. Any valid argument with a true conclusion is factually correct.
B. For each of the following arguments, indicate whether the argument is (1) valid, (2)
factually correct (if it is possible to say), and (3) sound (if it is possible to say).
6.
All mammals are warm-blooded.
All birds are warm-blooded.
All birds are mammals.
7.
All instructors in this logic class have no more than one head.
Persons with more than one head cannot do logic.
No instructor in this class can do logic.
8.
Elvis Presley is dead.
Elvis Presley is not dead.
Pigs fly.
C. Give counterexamples to the following arguments:
9.
All magpies are birds.
All the animals in my backyard are birds.
Some magpies are animals in my backyard.
10.
Some ostriches are shy.
No dugongs fail to be shy.
Some ostriches are dugongs.

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Psychology Openstax

Rosie M. Spielman 1st Edition

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Solved by Expert Mauya Mitchell

06/13/2025

Step 1

" This is TRUE. Validity is a logical property where if the premises are true, the conclusion must be true. If an argument has true premises (factually correct) but a false conclusion, then by definition it is not valid. Show more…

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A. Indicate whether the following are true or false: 1. Any factually correct argument with a false conclusion is not valid. 2. Any sound argument has a true conclusion. 3. Any argument with a true conclusion is valid. 4. Some sound arguments have at least one false premise. 5. Any valid argument with a true conclusion is factually correct. B. For each of the following arguments, indicate whether the argument is (1) valid, (2) factually correct (if it is possible to say), and (3) sound (if it is possible to say). 6. All mammals are warm-blooded. All birds are warm-blooded. All birds are mammals. 7. All instructors in this logic class have no more than one head. Persons with more than one head cannot do logic. No instructor in this class can do logic. 8. Elvis Presley is dead. Elvis Presley is not dead. Pigs fly. C. Give counterexamples to the following arguments: 9. All magpies are birds. All the animals in my backyard are birds. Some magpies are animals in my backyard. 10. Some ostriches are shy. No dugongs fail to be shy. Some ostriches are dugongs.

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Transcript

00:01 Hello, in this video, i'll be explaining the following.

00:03 So let's start with our true or false section.

00:06 So our first one is true.

00:09 Our next one is true.

00:13 Our next one is false.

00:15 So the truth of the conclusion doesn't guarantee the validity of the arguments.

00:20 A valid argument requires the conclusion that follows the premise that is provided.

00:26 So this one is false.

00:31 And then our next one is also.

00:33 So false.

00:37 So a sound argument cannot have any false premises.

00:41 Soundness requires validity and true premises.

00:45 And then our very last one is false.

00:50 And it's false because a valid argument with a true conclusion is not factually correct.

00:55 Validity is the structure of the argument while being factually correct is the truth of premise.

01:05 So let's go ahead and go to our next ones.

01:11 So number six, all animals are warm -blooded, all birds are warm -blooded, therefore all birds are warm -blooded.

01:20 This is not valid.

01:22 It's invalid.

01:23 The premise does not guarantee the conclusion.

01:27 And then it is, the premise is factually correct, but the conclusion is false...

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