TY - JOUR AU - Cushman, Richard AU - Śniatycki, Jędrzej TI - On Subcartesian Spaces Leibniz’ Rule Implies the Chain Rule JO - Canadian mathematical bulletin PY - 2020 SP - 348 EP - 357 VL - 63 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/S0008439519000407/ DO - 10.4153/S0008439519000407 ID - 10_4153_S0008439519000407 ER -