ABSTRACT
In broad architecture, a criticism of moral premises is the same as any other sort of premise criticism. This chapter focuses on premises, the starting points of arguments, the component elements of the rationale given for a given argument's conclusion. It suggests that it is not enough for an argument to be logical, an argument's worth as a case for its conclusion is only as good as the worth of its premises. One good way to begin to appraise a premise, especially if it is a premise in an argument that you favour, is to try criticizing it. To criticize a premise is to argue against it. The premises of an argument can be of any of our proposition types. These types are different and require different sorts of considerations to be appealed to in arguing against them. Argument failure is not conclusion failure, just failure of that particular line of justification for accepting that conclusion.
