 It takes a careful reading to fully appreciate the significance of Brentano’s change of mind. While the change is dramatic, it does not undermine Brentano’s theory completely. On the contrary. All of the following claims still remain in place: in perception we make simple existential judgements by affirming or rejecting an object that we perceive (PES 295 [II 164; SVS 1,  413]);[24]  categorical propositions can be equivalent with existential propositions (PES 298 [II 168; SVS 1, 416]; existential propositions can express concepts with a complex subject matter (ibid.). While these claims all remain unchanged, what Brentano gives up is the idea of uniformity in the realm of judgement. That is what Brentano’s anti-reduction turn comes to: