a note from David Papineau “Reliabilism, Induction and Scepticism”
The Problem of Induction – Problem? What problem?
Papineau suggests that there are different kinds of circularity (the problem of induction being a circular argument – induction to justify induction). There is a difference that needs to be distinguished between premise circularity and rule circularity. An argument is premise circular if its conclusion is contained amongst its premises. An argument is rule circular if it uses a rule of inference to arrive at a conclusion about that very rule of inference (induction for example).