• If relativism is right, then criticism of those outside our culture is impossible. (IP3 493b)
• If relativism is right, then moral reformers are always wrong. (IP3 493b)
• "Conventionalist relativism seems to reduce to subjectivism. And subjectivism leads ... to the demise of morality altogether." (IP3 494b)

[Each of these statements is merely a premise in a fuller argument.]