Logical Fallacies
Logical Fallacies / Fallacy Of Composition And Division

Fallacy of Composition and Division

The fallacy of composition and division makes the assumption that one part of something will apply to the whole, or that the whole must apply to all the parts.

Example of Fallacy of Composition and Division

  • Composition: Each part of this chair is cheap, so the whole chair for sale must be cheap.
  • Division: Healthy brains think. Healthy brains are comprised of nothing but brain cells. If healthy brains think, then the individual brain cells can think too.

This is a common fallacy.