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Ethical subjectivism

Philosophical position

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Through Proposition and Truth

  1. Ethical sentences express propositions.
  2. Some such propositions are true.
  3. The truth or falsity of such propositions is ineliminably dependent on the (actual or hypothetical) attitudes of people.

This makes ethical subjectivism a form of cognitivism (because ethical statements are the types of things that can be true or false). Ethical subjectivism stands in opposition to moral realism, which claims that moral propositions refer to objective facts, independent of human opinion; to error theory, which denies that any moral propositions are true in any sense; and to non-cognitivism, which denies that moral sentences express propositions at all.

Relationship to moral anti-realism

Ethical subjectivism is a form of moral anti-realism that denies the "metaphysical thesis" of moral realism, (the claim that moral truths are ordinary facts about the world). Instead ethical subjectivism claims that moral truths are based on the mental states of individuals or groups of people. The moral realist is committed to some version of the following three statements:

  1. The semantic thesis: Moral statements have meaning, they express propositions, or are the kind of things that can be true or false.
  2. The alethic thesis: Some moral propositions are true.
  3. The metaphysical thesis: The metaphysical status of moral facts is robust and ordinary, not importantly different from other facts about the world.

Moral anti-realism is the denial of at least one of these claims. Ethical subjectivists deny the third claim, instead arguing that moral facts are not metaphysically ordinary, but rather dependent on mental states, (individual's beliefs about what is right and wrong). Moral non-cognitivists deny the first claim, while error theorists deny the second claim.

There is some debate as to whether moral realism should continue to require the metaphysical thesis, and therefore if ethical subjectivists should be considered moral realists. Geoffrey Sayre-McCord argues that moral realism should not require mind-independence since there are morally relevant psychological facts which are necessarily mind-dependent, which would make ethical subjectivism a version of moral realism. This has led to a distinction being made between robust moral realism (which requires all three of the theses) and minimal moral realism (which requires only the first two, and is therefore compatible with ethical subjectivism).

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