D1. x is a society =df. x is a collection of people, living in proximity to each other, sharing a language, religion, cuisine, and culture.

D2. C is the moral code of society x at time t =df. C is the system of moral rules that is accepted among the members of society x at t.

CR: An act is morally right if and only if it is permitted by the moral code of the society of its agent at the time of its performance.

What are the three assumptions required in the construction of CR? Be able to explain why each of them is required to get CR up and running.

 
The Cultural Differences Argument

1. Different societies have different moral codes.
2. If different societies have different moral codes, then CR is an acceptable normative theory.
3. Therefore, CR is an acceptable normative theory. [1,2 MP]

 
The Reformer's Dilemma

D3. S is a moral reformer =df. S is a person who claims that some part of his own society's moral code is incorrect; S claims that acts declared to be wrong by that code are in fact right, or vice versa.

1. If CR is an acceptable normative theory, then every moral reformer is mistaken.
2. It's not the case that every moral reformer is mistaken.
3. Therefore, it's not the case that CR is an acceptable normative theory. [1,2 MT]

Be able to PEE an interesting argument against CR. Also be able to explain an interesting objection to CR informally.