ABSTRACT
The Naturalistic Fallacy may be briefly formulated as the thesis that moral 'ought' propositions are strictly implied by or logically derivable from factual 'is' propositions. The inability to logically derive a moral 'ought' from a set of 'is' propositions is not peculiar to moral assertions. The inability arises in virtue of the absence of strict implication between evidence and assertion; the evidence just does not entail the assertion. Beguiling as the similarities between the army and the law may be, the command theory of the law is not without difficulties when applied to actual existing municipal legal systems, let alone to international law. Parliament is the law-making body but its powers in practice are not unlimited. In theory Parliament, it is said, could commit 'suicide' and make over its legislative function to another body, annihilating its democratic nature by installing a dictator in its place.
