Reasoning

Logic and Fallacies

1,803 Questions

Understand the fundamentals of propositional logic, logical inference rules, and paradoxes. This set includes identifying logical fallacies, including those found in classical Nyaya logic. Strong grasp of these concepts is crucial for scoring well in the reasoning sections of competitive tests.

Propositional logic modelsLogical inference rulesTypes of logical fallaciesParadoxes and contingent truthsNyaya logic concepts

Logic and Fallacies Questions

Multiple choice

Which fallacy involves assuming that something is true because it has not been proven false, or vice versa?

  1. Appeal to Ignorance

  2. Affirming the Consequent

  3. Denying the Antecedent

  4. Circular Reasoning
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Appeal to Ignorance is a fallacy that assumes that a proposition is true simply because it has not been proven false, or that it is false because it has not been proven true. It relies on the absence of evidence or proof as a basis for making a claim.

Multiple choice

What is the fallacy of assuming that a conclusion is true because it follows logically from a set of premises, even if the premises themselves are false?

  1. Affirming the Consequent

  2. Denying the Antecedent

  3. Modus Ponens

  4. Modus Tollens
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Affirming the Consequent is a fallacy that occurs when a conclusion is drawn based on a conditional statement, assuming that if the consequent (the 'then' part) is true, then the antecedent (the 'if' part) must also be true. However, this is not always the case.

Multiple choice

Which fallacy involves assuming that a conclusion is false because it does not follow logically from a set of premises, even if the premises themselves are true?

  1. Denying the Antecedent

  2. Affirming the Consequent

  3. Modus Ponens

  4. Modus Tollens
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Denying the Antecedent is a fallacy that occurs when a conclusion is drawn based on a conditional statement, assuming that if the antecedent (the 'if' part) is false, then the consequent (the 'then' part) must also be false. However, this is not always the case.

Multiple choice

What is the fallacy of arguing in a circle, where the conclusion is used as evidence to support one of the premises?

  1. Circular Reasoning

  2. Begging the Question

  3. Affirming the Consequent

  4. Denying the Antecedent
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Circular Reasoning, also known as Begging the Question, is a fallacy that occurs when the conclusion of an argument is assumed in one of the premises. It involves using the conclusion as evidence to support itself, creating a circular loop of reasoning.

Multiple choice

Which fallacy occurs when a conclusion is drawn based on an emotional appeal rather than logical reasoning?

  1. Appeal to Emotion

  2. Appeal to Authority

  3. Appeal to Tradition

  4. Appeal to Ignorance
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Appeal to Emotion is a fallacy that attempts to persuade an audience by using emotional language, imagery, or stories to evoke strong feelings, rather than presenting logical arguments or evidence.

Multiple choice

What is the fallacy of assuming that a conclusion is true simply because it follows from a series of seemingly logical steps, without considering the validity of the premises or the reasoning process?

  1. Non Sequitur

  2. Circular Reasoning

  3. Affirming the Consequent

  4. Denying the Antecedent
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Non Sequitur is a fallacy that occurs when a conclusion does not logically follow from the premises. It involves a gap in the reasoning process, where the conclusion is not supported by the evidence or arguments presented.

Multiple choice

Which logical fallacy is commonly discussed in Indian logic?

  1. Affirming the consequent

  2. Denying the antecedent

  3. Appeal to ignorance

  4. Ad hominem
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Affirming the consequent is a logical fallacy that occurs when one assumes that the truth of the consequent implies the truth of the antecedent.

Multiple choice

Which logical fallacy is associated with the misuse of language in Indian logic?

  1. Shabda-jati

  2. Shabda-vyapti

  3. Shabda-hetvabhasa

  4. Shabda-dharmakirti
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Shabda-hetvabhasa refers to the logical fallacy associated with the misuse of language in Indian logic.

Multiple choice

What is the term for the logical fallacy of circular reasoning in Indian logic?

  1. Chakraka

  2. A循環

  3. B循環

  4. C循環
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chakraka is the term for the logical fallacy of circular reasoning in Indian logic.

Multiple choice

What is the term for the logical fallacy of begging the question in Indian logic?

  1. Vrutta

  2. A循環

  3. B循環

  4. C循環
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vrutta is the term for the logical fallacy of begging the question in Indian logic.

Multiple choice

What is the term for the logical fallacy of overgeneralization in Indian logic?

  1. Vyabhichara

  2. A循環

  3. B循環

  4. C循環
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vyabhichara is the term for the logical fallacy of overgeneralization in Indian logic.

Multiple choice

What do you call a math problem that's impossible to solve?

  1. A headache

  2. A nightmare

  3. A brain teaser

  4. A mathematical enigma
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A mathematical enigma is a humorous way to describe a math problem that is very difficult or impossible to solve.

Multiple choice

Which of the following is not a type of logical fallacy?

  1. Ad hominem

  2. Straw man

  3. Begging the question

  4. Affirming the consequent
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Affirming the consequent is a valid argument form, unlike the other options which are logical fallacies.

Multiple choice

Which of the following is not a type of logical fallacy?

  1. Ad hominem

  2. Straw man

  3. Begging the question

  4. Affirming the consequent
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Affirming the consequent is a valid argument form, unlike the other options which are logical fallacies.

Multiple choice

Which of the following is an example of a valid syllogism using a Svabhava Hetu?

  1. All fire is hot because it burns things

  2. All smoke is a sign of fire because it is always produced by fire

  3. The absence of smoke is a sign of the absence of fire
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

All fire is hot because it burns things is an example of a valid syllogism using a Svabhava Hetu because the hetu (burning things) is inherent in the nature of fire.