The role of logic in ethics is to
The role of logic in ethics is to
Arguments about morality (or other areas) are seldom watertight. We often reason from probable premises -- or hunches -- or personal commitments. Reasoning isn't always strict proof and doesn't have to have indisputable premises to be useful.
The role of logic in ethics is to
Formal ethics stresses the consistency part.
Consistency often comes up in moral discussions. Smith defends his views by appealing to a moral principle. Jones points out the principle's implausible implications. Smith, to be consistent, has to accept the implications -- or reject the principle -- or modify the principle to avoid the implications. This is a common pattern. It rests on logic and consistency.