TY - JOUR AU - Věra Trnková TI - $X^m$ is homeomorphic to $X^n$ iff m ~ n where ~ is a congruence on natural numbers JO - Fundamenta Mathematicae PY - 1973 SP - 51 EP - 56 VL - 80 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-80-1-51-56/ DO - 10.4064/fm-80-1-51-56 LA - en ID - 10_4064_fm_80_1_51_56 ER -