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WorksheetsIntroductory Logic Unit 3 VHSG
Total questions: 15
Worksheet time: 8mins
All plums are fruit.
All fruit are delicious food.
Therefore, all plums are delicious food.
What is the mood of this syllogism?
AEO
AAA
OIE
EIEIO
Where do we find the major term?
It is the subject of the conclusion
It is the predicate of the conclusion
It is the term not in the conclusion.
What is the figure of the following syllogism?
All dogs are fun creatures.
Some cats are fun creatures.
Therefore some cats are dogs.
1
2
3
4
Name the two ways to test the validity of a syllogism. (choose two answers)
If it is true then it is valid.
By the five rules of validity
By writing a counter example
If the conclusion is true
Which rule is broken in this syllogism?
All turtles are reptiles.
Some newts are turtles.
Therefore, no reptiles are turtles.
Fallacy of the undistributed middle
Fallacy of the illicit major
Two affirmative premises and a negative conclusion
True or false, a distributed term within a statement refers to all the members of its class?
True
False
True or False, the predicates of negative statements are not distributed?
True
False
Which of the terms, if any, are distributed in this syllogism?
No cat is a bird.
Some birds are male animals.
Therefore, some cats are male animals.
No term is distributed
birds
cats
male animals
Is this syllogism valid?
All frogs are awesome animals.
All frogs are amphibians.
Therefore, all amphibians are awesome animals.
Yes, this is an AAA syllogism, they are always valid.
No, this is not valid.
Of the 5 rules of validity, a syllogism need break just one in order to be invalid, true or false?
true
false
The subjects of universal statements are always distributed, true of false?
True
False
The first thing you should look for when examining a syllogism is validity, true or false?
True.
False.
Neither true or false, you can look at many things first.
Select the items a categorical syllogism has.
Minor term and minor premise.
Major term and major premise.
Conclusion
Middle term
What is the form of this syllogism (mood+figure).
Some girls are cooks.
Some girls are farmers.
Therefore, some farmers are cooks.
III-1
III-2
III-3
III-4
If a syllogism has true premises and a false conclusion it is invalid, true or false?
True
False
