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Return to Logic 4e Student Resources
Chapter 5, Level 2 Self Quiz: G
Quiz Content
*
not completed
.
The converse of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
Some dogs are not Dalmatians.
Converse: Some Dalmatians are not dogs.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The obverse of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
Some dogs are not Dalmatians.
Obverse: Some dogs are non-Dalmatians.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The contrapositive of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
Some dogs are not Dalmatians.
Contrapositive: Some non-Dalmatians are not non-dogs.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The converse of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
All cars are engineered objects.
Converse: Some engineered objects are cars.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The obverse of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
All cars are engineered objects.
Obverse: No cars are non-engineered objects.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The contrapositive of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
All cars are engineered objects.
Contrapositive: All non-engineered objects are non-cars.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The converse of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
No politicians are people with integrity.
Converse: No people with integrity are politicians.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The obverse of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
No politicians are people with integrity.
Obverse: All politicians are non-people with integrity.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The contrapositive of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
No politicians are people with integrity.
Contrapositive: Some non-people with integrity are not non-politicians.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The converse of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
Some friends are not honest people.
Converse: Some honest people are not friends.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The obverse of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
Some friends are not honest people.
Obverse: Some friends are non-honest people.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The contrapositive of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
Some friends are not honest people.
Contrapositive: Some non-honest people are not non-friends.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The converse of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
All autoworkers are people in unions.
Converse: Some people in unions are autoworkers.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The obverse of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
All autoworkers are people in unions.
Obverse: No autoworkers are non-people in unions.
Valid
correct
incorrect
Invalid
correct
incorrect
*
not completed
.
The contrapositive of the given proposition is provided. Determine whether the subsequent immediate inference is valid or invalid.
All autoworkers are people in unions.
Contrapositive: All non-people in unions are non-autoworkers.
Valid
correct
incorrect
Invalid
correct
incorrect
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