English edit

Etymology edit

coextensive +‎ -ness

Noun edit

coextensiveness (uncountable)

  1. The property of being coextensive.
    • 2007 September 1, Daniel A. Weiskopf, “The origins of concepts”, in Philosophical Studies, volume 140, number 3, →DOI:
      This disjunction might pick out the same extension as the concept cat, but being able to entertain that complex disjunction isn’t sufficient for having that concept despite this coextensiveness.