Hansen - Freeman's 'Acceptable Premises: An Epistemic Approach to an Informal Logic Problem'

"If all arguments rest on basic premises, and all basic premises are acceptable only if there is a presumption of warrant for them, is it the case that all conclusions of arguments, all beliefs supported by arguments, are no more than presumptions? This line of thought seems to me to be tempting, and I wonder whether Freeman would endorse it. Others have treated presumptions as a category distinct from fact, truth, and values (Chaim Perelman), and so they would not be committed to such an outcome." - NDPR.