 As we know, \(e\) (directly) Hempel-confirms \(h\), according to Hempel’s reconstruction of Nicod. By the same token, \(e^*\) (directly) Hempel-confirms the hypothesis that all non-black objects are non-ravens, i.e., \(h^* = \forall x(\neg black(x) \rightarrow \neg raven(x))\). But \(h^* \vDash h\) (\(h\) and \(h^*\) are just logically equivalent). So, \(e^*\) (the observation report of a non-black non-raven), like \(e\) (black raven), does (indirectly) Hempel-confirm \(h\) (all ravens are black). Indeed, as \(\neg raven(a)\) entails \(raven(a) \rightarrow black(a)\), it can be shown that \(h\) is (directly) Hempel-confirmed by the observation of any object that is not a raven (an apple, a cat, a shoe), apparently disclosing puzzling “prospects for indoor ornithology” (Goodman 1955, 71).