1. To have a right is to be able to legitimately enforce something.
  2. Rights-scepticism must challenge the legitimacy of a rights enforcability.
  3. To challenge the legitimacy of the enforcement, it must be held that the party being enforced against has a right to not have this enforcement used against them; that they can legitimately use force to stop this illegitimate enforcement.

This proves that the denial of the existence of rights leads to a contradiction.1

Footnotes

  1. The Fundamentals of Libertarian Ethics (2)