Moralistic Fallacy (also known as: moral fallacy) Description: When the conclusion expresses what is, based only on what one believes ought to be, or what isn’t is based on what one believes ought not to be. This is the opposite of the naturalistic fallacy. In his 1957 paper, Edward C. Moore defined the moralistic fallacy as the assertion that moral judgments are of a different order from factual judgements. Over the years, this concept has been simplified to deriving an “is” from an “ought.” Logical Forms: X ought to be. Therefore, X is. X ought not to be. Therefore, X is not. Example #1:
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