TY - JOUR AU - V. G. Kanovei TI - Undecidable hypotheses in Edward Nelson's internal set theory JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1991 SP - 1 EP - 54 VL - 46 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1991_46_6_a0/ LA - en ID - RM_1991_46_6_a0 ER -