Definition:Equivocation

Definition
An equivocation is a shift in meaning of an ambiguous term.

If an argument's persuasive force depends on utilizing an equivocation it is fallacious.

To make such an argument is to commit the fallacy of equivocation.

Examples

 * Candlelight is brighter than nothing.
 * Nothing is brighter than the light from the sun.
 * Therefore, candlelight is brighter than the light from the sun.

Attributed to Raymond Smullyan:


 * Some cars rattle.
 * My car is some car.
 * Therefore, my car rattles.