What is the difference between the straw man fallacy and the motte and bailey fallacy?

The motte and bailey fallacy and the straw man fallacy both involve misrepresenting an argument, but the main difference lies in their tactics:

  • Motte and bailey fallacy: Modifying one’s own position to seem less extreme when challenged, then reverting to the original claim
  • Straw man fallacy: Attacking a distorted version of an opponent’s argument

Continue reading: What is the difference between the straw man fallacy and the motte and bailey fallacy?

What does the term motte and bailey mean?

The term “motte and bailey” originates from the fortifications of medieval castles. A motte (a raised mound) provided a strong, defensible position, while a bailey (an enclosed courtyard) offered more accessible but less defensible space.

The motte and bailey fallacy is named after this castle design because, like the tactic of switching between an easily defensible position (the motte) and a more vulnerable but easier to access position (the bailey), it involves switching between extreme and moderate positions in an argument.

Continue reading: What does the term motte and bailey mean?

What is the amphiboly fallacy?

The amphiboly fallacy involves using the confusing syntax of a sentence to prove a point. Whereas many logical fallacies result from reasoning errors, the amphiboly fallacy stems directly from linguistic ambiguity—whether due to a mistake or an intentional misuse of language.

Its name is based on the term “amphiboly”: syntactic ambiguity that results in a sentence having multiple possible interpretations.

Continue reading: What is the amphiboly fallacy?

What are fallacies of ambiguity?

A fallacy of ambiguity occurs when an argument relies on ambiguous language or unclear definitions to mislead. These fallacies often exploit the vagueness or multiple meanings of terms to make an argument seem strong when it is not.

Fallacies in this category include the following:

  • Equivocation fallacy: Shifting the meaning of a key term within an argument to mislead or confuse
  • Amphiboly fallacy: Justifying a misinterpretation of a statement by exploiting its ambiguous sentence structure
  • Motte and bailey fallacy: Defending a controversial position by retreating to a more widely accepted position when challenged, then returning to the original position

Continue reading: What are fallacies of ambiguity?

What is a major premise?

A major premise is one of the two premises in a syllogism. It is a broad statement expressing a generalization or a principle accepted as true. The major premise always comes first in a syllogism and contains the predicate of the conclusion.

For example, in the syllogism “All dogs have fur. Fido is a dog. Therefore, Fido has fur”, the major premise is “All dogs have fur”.

Continue reading: What is a major premise?