%0 Journal Article %A Makinson, David %T The Phenomenology of Second-Level Inference: Perfumes in The Deductive Garden %J Bulletin of the Section of Logic %D 2020 %P 327-342 %V 49 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/BSL_2020_49_4_a0/ %G en %F BSL_2020_49_4_a0