 Supporters of dilemmas have a burden to bear too. They need to cast doubt on the adequacy of the pertinent principles in the two arguments that generate inconsistencies. And most importantly, they need to provide independent reasons for doubting whichever of the principles they reject. If they have no reason other than cases of putative dilemmas for denying the principles in question, then we have a mere standoff. Of the principles in question, the most commonly questioned on independent grounds are the principle that ‘ought’ implies ‘can’ and PD. Among supporters of dilemmas, Walter Sinnott-Armstrong (Sinnott-Armstrong 1988, Chapters 4 and 5) has gone to the greatest lengths to provide independent reasons for questioning some of the relevant principles.