Emotivism

Emotivism (also known as the hurrah/boo theory) is the meta-ethical view which claims that: Ethical sentences do not express propositions Instead, ethical sentences express emotional attitudes.This makes emotivism a form of non-cognitivism or expressivism. Emotivism stands in opposition to other forms of non-cognitivism (such as quasi-realism and universal prescriptivism), as well as to all forms of cognitivism (including both moral realism, and ethical subjectivism).Influenced by the growth of analytic philosophy and logical positivism in the 20th century, the theory was stated most vividly by A. J. Ayer in his 1936 book Language, Truth and Logic,but its development owes even more to C. L. Stevenson.In the 1950s, emotivism appeared in a modified form in the universal prescriptivism of R. M. Hare.