TY - JOUR AU - Nima Rasekh TI - Every elementary higher topos has a natural number object JO - Theory and applications of categories PY - 2021 SP - 337 EP - 377 VL - 37 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TAC_2021_37_a12/ LA - en ID - TAC_2021_37_a12 ER -