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WorksheetsTechniques of Philosophical Inquiry
Total questions: 12
Worksheet time: 6mins
An argument is valid if ...
the premises necessarily entail the conclusion.
the conclusion necessarily entails the premises.
if the premises are true and the conclusion is true.
If the premises are false but the conclusion is true.
An argument is sound if ...
the premises are false but the argument is valid.
it's inductive and the premises are true.
it's valid and the premises are true.
if the premises are false and the argument is invalid.
An argument is cogent if ...
it's deductive and the argument is valid.
it's inductive and the premises necessarily entail the conclusion.
it's deductive and the premises are false but the conclusion is true.
it's inductive and the premises provide good reason for believing the conclusion.
What is the conclusion of the following argument?
"William will probably return wet. He has gone waterskiing and people who go waterskiing usually end up wet."
William has gone waterskiiing.
William will probably return wet.
People who go waterskiing end up wet.
What is the implied premise of this argument?
"Ben worked hard all year, therefore he will pass."
Ben will pass.
Ben worked hard all year.
Working hard ensures that you will pass.
Is the following argument valid?
"Only vegetarians like broccoli. Grace likes broccoli so Grace is a vegetarian."
Yes
No
Is the following argument sound?
"Only vegetarians like broccoli. Grace likes broccoli so Grace is a vegetarian."
Yes
No
Is the following argument inductive or deductive?
"In the past, ducks have always come to our pond. Therefore, the ducks will come to our pond this summer."
Inductive
Deductive
Is the following argument inductive or deductive?
"All horses love hay. Tansy is a horse. Therefore, Tansy will love hay."
Inductive
Deductive
Identify the following fallacy:
"You have just committed the Slippery Slope Fallacy. Your conclusion is therefore false."
Slippery slope
Fallacy fallacy
Non-sequiter
Straw-man
Identify the following fallacy:
"If my family are planning a surprise party for me, they will start acting suspiciously. My family are acting suspiciously, so they must be planning a surprise party for me."
Post hoc, ergo propter hoc
Straw man
Gambler's fallacy
Affirming the consequent
Identify the following fallacy:
"Given today’s competitive economic climate, young people have only one of two choices: either get a tertiary qualification or face an uncertain future, competing against the better educated in an unstable jobs market."
Slippery slope
False dilemma / black and white fallacy
Straw man
Circular reasoning / begging the question
