One issue that emerged locally this year involves a provision in state election law that keeps candidates from appearing on independent lines if they are already on two or more political party lines. (chicagotribune.com)
It is an actual, physical thing discovered indirectly but definitively based on multiple independent lines of evidence. (discovermagazine.com)
In science there are a great many largely independent lines of evidence and investigation, each of which are supported by a great many more. (realclimate.org)