How is it possible then that they can share the same mental states and properties?

A class is defined as a set of individuals sharing common properties.

They all share certain acoustic properties which, he thought, would make the call difficult to locate.

Words sharing the same key are said to share properties.

A food group is a collection of foods that share similar nutritional properties or biological classifications.

A study of the light that came off these events show that they all share common properties.

This mechanism is used to share or reuse properties between the general data component and its specialization.

Isomers do not necessarily share similar properties, unless they also have the same functional groups.

Clitics and words resemble different categories in the sense that they share certain properties with them.

Languages seem to share certain properties although many of these include exceptions.