Abstract
Introduction Groups and solidarity are, separately, widely debated concepts in contemporary social philosophy, yet their interplay remains largely unexplored and undertheorized. In fact, when it comes to investigating one of these concepts, more often than not the other is at best vaguely mentioned as a background assumption, and vice versa. To be fair, this poor attention to the connections between groups and solidarity is not to be addressed to social philosophers only, for it is easily rec...