Type: Article
Publication Date: 1945-01-01
Citations: 11
DOI: https://doi.org/10.1090/s0002-9904-1945-08480-8
Janiszewski proved [2] 1 the following for the plane.THEOREM A. The sum of two compact continua does not cut the point A from the point B provided neither cuts A from B and their common part is connected or does not exist.THEOREM B. The sum of two compact continua cuts the plane provided their common part is not connected.