%0 Journal Article %A Anders Kock %T Two theorems of Lie on infinitesimal symmetries of differential equations %J Theory and applications of categories %D 2025 %P 93-107 %V 43 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2025_43_a4/ %G en %F TAC_2025_43_a4