Law I / Law, Morality, Custom and Force
Practice question · Select all that apply

Which are true of the separability thesis?

Hints
  1. Three describe the thesis and its defence; one attributes to it a claim about coercion it never made.
  2. Positivists agree that law is a coercive order; that is not what the thesis is about.
Show the answer
  • A. It holds that the question what law is and the question what law ought to be are distinct
  • B. It is compatible with holding that a particular valid law is too unjust to obey
  • D. It was defended by Hart in his 1958 exchange with Fuller
Why

The fourth confuses two separate positivist claims. Hart never denied that legal systems coerce, he denied that coercion explains what a rule is, and Kelsen built an entire system on defining the legal norm as one that attaches a sanction to a condition. The separability thesis is about validity and merit, not about force.

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