WorksheetsLogic Practice
Total questions: 41
Worksheet time: 28mins
A Circular form of reasoning in which a conclusion is derived from premises that presuppose the conclusion.
Ad Hominem
Begging the question
Post hoc ergo propter hoc
Bandwagon
Cherry picking
A fallacy that attacks the person rather than the issue.
Ad Hominem
Begging the question
Post hoc ergo propter hoc
Bandwagon
Cherry picking
A fallacy that wrongly assumes a cause and effect relationship.
Ad Hominem
Begging the question
Post hoc ergo propter hoc
Bandwagon
Cherry picking
A fallacy that creates the impression that everyone is doing it, so should you.
Ad Hominem
Begging the question
Post hoc ergo propter hoc
Bandwagon
Cherry picking
A false argument only reveals facts that seem to prove the thesis and leaves out facts that would disprove it.
Ad Hominem
Begging the question
Post hoc ergo propter hoc
Bandwagon
Cherry picking
Read the syllogism and state if it is Valid and True (VT) Valid and False (VF) Invalid but True (IT) or Invalid and False (IF): Mary is an elephant. Mary is pink. therefore, all elephants are Pink.
VT
IF
VF
IT
P1: All humans have the ability to think;
P2: Alex is a human;
P3: Therefore, Alex can think.
Valid
invalid
P1: Bob has never washed his car during winter;
P2: It is winter;
P3: Therefore, Bob doesn't wash his car.
Valid
Invalid
If it is Friday, then I will get paid.
It is Friday.
Write the conclusion.
What can you conclude?
If it is below 32 degrees outside, then it is snowing. It is 28 degrees outside.
It is a sunny day.
It is raining.
It is below 32 degrees.
It is snowing.
"A statement or proposition from which another is inferred or follows."
Premise
Conclusion
Valid
Sound
"A proposition that is reached from given premises."
Premise
Conclusion
Valid
Sound
A logical argument whose premises necessarily lead to the conclusion, regardless of whether or not the premises are correct.
Premise
Conclusion
Valid
Sound
The philosophical idea that says that the simplest explanation is usually the right one.
Ockham's Razor
Syllogism
Objective Truth
Subjective Truth
A tool for identifying the general Truths in an argument. Usually consists of 3 parts: A universal premise, a related particular premise and a conclusion that follows from the premises.
Ockham's Razor
Syllogism
Objective Truth
Subjective Truth
A statement that is true for the speaker of a particular group of people, but may or not be true for all.
Ockham's Razor
Syllogism
Objective Truth
Subjective Truth
A statement that is true regardless of the speaker.
Ockham's Razor
Syllogism
Objective Truth
Subjective Truth
A conclusion about a subject which may or not be accurate based upon the knowledge or expertise of the person holding it.
Preference
Opinion
Essence
Accident
A greater liking for one thing over another.
Preference
Opinion
Essence
Accident
A quality without which a thing will cease to be what it is.
Preference
Opinion
Essence
Accident
A quality without which a thing will remain what it is.
Preference
Opinion
Essence
Accident
Read the syllogism and state if it is Valid and True (VT) Valid and False (VF) Invalid but True (IT) or Invalid and False (IF): It never rains on Monday. It is raining. It is not Monday
VT
IF
VF
IT
Read the syllogism and state if it is Valid and True (VT) Valid and False (VF) Invalid but True (IT) or Invalid and False (IF): All members of the Class of 2025 rock. I am a member of the class of 2025, Therefore I rock.
VT
IF
VF
IT
Read the syllogism and state if it is Valid and True (VT) Valid and False (VF) Invalid but True (IT) or Invalid and False (IF): My large cat is lazy. You have a large cat. Your cat is also lazy.
VT
IF
VF
IT
Read the syllogism and state if it is Valid and True (VT) Valid and False (VF) Invalid but True (IT) or Invalid and False (IF): All elephants are pink. Mary is an elephant. Mary is pink.
VT
IF
VF
IT
Read the syllogism and state if it is Valid and True (VT) Valid and False (VF) Invalid but True (IT) or Invalid and False (IF): All aliens live in Jupiter. I am an alien. I live in Jupiter.
VT
IF
VF
IT
Fill in the missing premise of this syllogism based on what is given to you:
P1:_________________________
P2: This dog is a greyhound.
C: This dog is fast.
Some dogs are fast.
All greyhounds are fast.
All greyhounds are thin
All greyhounds are lazy
Fill in the missing premise of this syllogism based on what is given to you:
P1: All babies cry
P2: _________________
C: Jasper cries
Jasper is sad
Jasper plays with his toys
Jasper is a baby
Jasper is sick
Fill in the missing premise of this syllogism based on what is given to you:
P1: All fish are vertebrates
P2:________________________
C: Salmon are vertebrates
Salmon are fish
Salmon are large
Salmon are delicious
Salmon live in the ocean
Read the sentence and choose which fallacy best describes what is being said:
"This is the right way to do it because I said so and I am in charge!"
Appeal to Tradition
Appeal to Ignorance
Appeal to Authority
Appeal to pity
Read the sentence and choose which fallacy best describes what is being said:
"This is the right way to do it because this is the way it has always been done!"
Appeal to Tradition
Appeal to Ignorance
Appeal to Authority
Appeal to pity
Read the sentence and choose which fallacy best describes what is being said:
"You can't prove that space cowboys didn't build Stonehenge, so my theory that they did is valid!"
Appeal to Tradition
Appeal to Ignorance
Appeal to Authority
Appeal to pity
Read the sentence and choose which fallacy best describes what is being said:
"I deserve an A on this quiz because I tore my pants getting out of the car this morning and I am very sad about it."
Appeal to Tradition
Appeal to Ignorance
Appeal to Authority
Appeal to pity
Read the sentence and choose which fallacy best describes what is being said:
"McDonald's is the best restaurant in the world because it has the most sales."
Post hoc ergo propter hoc.
Appeal to Popularity
Strawman
Tu Quoque
Read the sentence and choose which fallacy best describes what is being said:
"My TV broke after you arrived so you caused it to break."
Post hoc ergo propter hoc.
Appeal to Popularity
Strawman
Tu Quoque
Read the sentence and choose which fallacy best describes what is being said:
"You say I should eat a balanced diet, but I saw you eat a whole pizza once!"
Post hoc ergo propter hoc.
Appeal to Popularity
Strawman
Tu Quoque
Read the sentence and choose which fallacy best describes what is being said:
"Mr. Pfefferle insists we get to school on time. He doesn't care about us getting enough sleep!"
Post hoc ergo propter hoc.
Appeal to Popularity
Strawman
Tu Quoque
Grizzly bears can't be dangerous! They're too cute.
ad hominem
red herring
strawman
P1: All A is C;
P2: B is A;
P3: Therefore, B is C.
True
False
P1: Every car has wheels and doors;
P2: X has wheels and doors;
P3: Therefore, X is a car.
True
False
If you live in Orlando, then you live in Florida.
You live in Orlando.
