Consider 'horse'. A white horse, a black horse and a brown horse differ in color, but each is a horse.
Example 1: a white horse is a horse.
Example 2: a black horse is a horse.
Example 3: a brown horse is a horse.
A universal does not require all its instances to be identical in every feature. They share the meaning under which they are classified.
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One universal concept across distinct individuals
Universal and Particular — Definitions and Practical Classification
Consider 'horse'. A white horse, a black horse and a brown horse differ in color, but each is a horse.
Example 1: a white horse is a horse.
Example 2: a black horse is a horse.
Example 3: a brown horse is a horse.
A universal does not require all its instances to be identical in every feature. They share the meaning under which they are classified.