Reasoning

Logic and Fallacies

1,716 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 of the following is a type of fallacy in Indian logic that occurs when a conclusion is drawn from a premise that is too broad or general?

  1. Adhyavasaya

  2. Vyapti

  3. Hetvabhasa

  4. Sadhana
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sadhana is a type of fallacy in Indian logic that occurs when a conclusion is drawn from a premise that is too broad or general. It is also known as a fallacy of overgeneralization.

Multiple choice

Which of the following is a type of inference in Indian logic that involves drawing a conclusion from a series of premises?

  1. Anumana

  2. Vyapti

  3. Hetvabhasa

  4. Tarka
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tarka is a type of inference in Indian logic that involves drawing a conclusion from a series of premises. It is based on the principle that if A is associated with B, B is associated with C, and C is associated with D, then A must also be associated with D.

Multiple choice

Which of the following is a type of fallacy in Indian logic that occurs when a conclusion is drawn from a premise that is based on a false analogy?

  1. Adhyavasaya

  2. Vyapti

  3. Hetvabhasa

  4. Upamana
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Upamana is a type of fallacy in Indian logic that occurs when a conclusion is drawn from a premise that is based on a false analogy. It is also known as a fallacy of false analogy.

Multiple choice

Which of the following is an example of a statement that is true according to the Correspondence Theory of Truth?

  1. The Earth is round.

  2. The sun is hot.

  3. 2 + 2 = 4.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All of the following statements are true according to the Correspondence Theory of Truth because they accurately describe the way things are in the world.

Multiple choice

Which of the following is an example of a statement that is false according to the Correspondence Theory of Truth?

  1. The Earth is flat.

  2. The sun is cold.

  3. 2 + 2 = 5.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All of the following statements are false according to the Correspondence Theory of Truth because they do not accurately describe the way things are in the world.

Multiple choice

What is a hypothesis?

  1. A proposed explanation for a phenomenon

  2. A statement of fact

  3. A prediction about a future event

  4. A set of instructions for conducting an experiment
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A hypothesis is a proposed explanation for a phenomenon. It is based on observations and prior knowledge, and it can be tested through experimentation.

Multiple choice

Can a posteriori knowledge be certain?

  1. Yes

  2. No
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A posteriori knowledge is knowledge that is acquired through experience. It is therefore possible for a posteriori knowledge to be certain, although it is not always the case.

Multiple choice

Which of the following is an example of a synthetic a priori judgment?

  1. The sky is blue.

  2. 2 + 2 = 4.

  3. The Earth revolves around the Sun.

  4. Paris is the capital of France.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A synthetic a priori judgment is a judgment that is both synthetic (i.e., it is not analytic) and a priori (i.e., it is known independently of experience). The fact that the Earth revolves around the Sun is an example of a synthetic a priori judgment.

Multiple choice

Which of the following is an example of an analytic a posteriori judgment?

  1. The sky is blue.

  2. 2 + 2 = 4.

  3. The Earth revolves around the Sun.

  4. Paris is the capital of France.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An analytic a posteriori judgment is a judgment that is both analytic (i.e., it is true by definition) and a posteriori (i.e., it is known through experience). The fact that Paris is the capital of France is an example of an analytic a posteriori judgment.

Multiple choice

In epistemic logic, what does the symbol (K) represent?

  1. Knowledge

  2. Belief

  3. Possibility

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

The symbol (K) is used to represent knowledge in epistemic logic.

Multiple choice

Which of the following is an example of a belief claim?

  1. I know that the Earth is round.

  2. I believe that the Earth is round.

  3. It is possible that the Earth is round.

  4. It is necessary that the Earth is round.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A belief claim is a statement that is believed to be true. The statement "I believe that the Earth is round" is an example of a belief claim.

Multiple choice

Which of the following is an example of a priori knowledge?

  1. I know that 2 + 2 = 4.

  2. I know that the Earth is round.

  3. I know that the sun is a star.

  4. I know that the sky is blue.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A priori knowledge is knowledge that is gained independently of experience. The statement "I know that 2 + 2 = 4" is an example of a priori knowledge.

Multiple choice

Which of the following is an example of a posteriori knowledge?

  1. I know that 2 + 2 = 4.

  2. I know that the Earth is round.

  3. I know that the sun is a star.

  4. I know that the sky is blue.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A posteriori knowledge is knowledge that is gained through experience. The statement "I know that the Earth is round" is an example of a posteriori knowledge.

Multiple choice

Which of the following is an example of necessary knowledge?

  1. I know that 2 + 2 = 4.

  2. I know that the Earth is round.

  3. I know that the sun is a star.

  4. I know that the sky is blue.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Necessary knowledge is knowledge that is true in all possible worlds. The statement "I know that 2 + 2 = 4" is an example of necessary knowledge.

Multiple choice

Which of the following is an example of contingent knowledge?

  1. I know that 2 + 2 = 4.

  2. I know that the Earth is round.

  3. I know that the sun is a star.

  4. I know that the sky is blue.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Contingent knowledge is knowledge that is true in some possible worlds but not others. The statement "I know that the Earth is round" is an example of contingent knowledge.