Third Act. - Logical Opposition Flashcards
Determine the truth value of the oppositions from the given proposition:
“Some priests are married.” (F)
Subaltern
Contradictory
Contrary
The correct answer is:
Subaltern → False,
Contradictory → True,
Contrary → True
Determine the truth value of the oppositions from the given proposition:
“No honest man is a man of integrity.” (T)
Some honest men are men with integrity.
Not all honest men are men with integrity.
All honest men are men of integrity.
The correct answer is:
Some honest men are men with integrity. → False,
Not all honest men are men with integrity. → True,
All honest men are men of integrity. → False
Determine the truth value of the oppositions from the given proposition:
“Anyone is capable of learning fast.” (F)
Not everybody is capable of learning fast.
No one is capable of learning fast.
Someone is capable of learning fast.
The correct answer is:
Not everybody is capable of learning fast. → True,
No one is capable of learning fast. → Unknown,
Someone is capable of learning fast. → Unknown
Determine the truth value of the oppositions from the given proposition:
“All men of justice are fair individuals.” (F)
Contradictory
Contrary
Subaltern
The correct answer is:
Contradictory → True,
Contrary → Unknown,
Subaltern → Unknown
Determine the truth value of the oppositions from the given proposition:
“Most philosophers are level-headed individuals.” (F)
Contrary
Contradictory
Subaltern
The correct answer is:
Contrary → True,
Contradictory → True,
Subaltern → False
Determine the truth value of the oppositions from the given proposition:
“Citrus fruits are rich in Vitamin C.” (T)
Subaltern
Contrary
Contradictory
The correct answer is:
Subaltern → True,
Contrary → False,
Contradictory → False
Determine the truth value of the oppositions from the given proposition:
“Not all government officials are honest individuals.” (T)
Subaltern
Contrary
Contradictory
The correct answer is:
Subaltern → Unknown,
Contrary → Unknown,
Contradictory → False
Determine the truth value of the oppositions from the given proposition:
“Most rebels are not lovers of country.” (F)
All rebels are lovers of country.
No rebel is a lover of country.
Most rebels are lovers of country.
The correct answer is:
All rebels are lovers of country. → True,
No rebel is a lover of country. → False,
Most rebels are lovers of country. → True
Determine the truth value of the oppositions from the given proposition:
“All religions are God-centered.” (T)
No religion is God-centered.
Many religions are God-centered.
Not all religions are God-centered.
The correct answer is:
No religion is God-centered. → False,
Many religions are God-centered. → True,
Not all religions are God-centered. → False
Determine the truth value of the oppositions from the given proposition:
“All communists are idealists.” (T)
Some communists are not idealists.
No communist is an idealist.
Most communists are idealists.
The correct answer is:
Some communists are not idealists. → False,
No communist is an idealist. → False,
Most communists are idealists. → True
