uh have proven that there is a link between the ingestation of chlorine and arteriosclerosis which is heart attack
It has been proven that there is absolutely no link between arteriosclerosis and the consumption of chlorine. 
mnli hypothesis: It has been proven that there is absolutely no link between arteriosclerosis and the consumption of chlorine.  premise: uh have proven that there is a link between the ingestation of chlorine and arteriosclerosis which is heart attack