 However, even though mereological dependence is still sometimes considered to be relevant to fundamentality, it is becoming less common to view it as the only relevant kind of dependence (Wilsch 2016; Bennett 2017: 8–9). Be that as it may, there is certainly an esteemed history for this type of idea, given that (mereological) atomism of the type defended already by ancient philosophers such as Leucippus and Democritus would appear to be an instance of the view (see the separate entry on  ancient atomism  for details).