Hume's law or Hume's guillotine[1] is the thesis that, if a reasoner only has access to non-moral and non-evaluative factual premises, the reasoner cannot logically infer the truth of moral statements.
A Refutation of Hume’s Law
Hume's law or Hume's guillotine[1] is the thesis that, if a reasoner only has access to non-moral and non-evaluative factual premises, the reasoner cannot logically infer the truth of moral statements.