An exposition in A Treatise of Human Nature known as "Hume's guillotine" describes, for 10 points, what problem of declaring that statements about how things are cannot tell you how things should be?
Alisdair MacIntyre claims that this idea has been misunderstood by mistreating its formulator's use of the word "deduction" to mean "entailment" in a paper that suggests this idea was a rebuttal to Richard Allestree. A 1964 work by Max Black tries to settle this issue by considering Bobby Fischer, who can checkmate Mikhail Botwinnik by moving his queen. John Searle's earliest adaptation of Anscombe's distinction between brute and institutional facts appears in an article titled for this problem, which was introduced in a passage that aspires to "subvert all the vulgar systems of morality" by showing that "the distinction of vice and virtue is not founded merely on the relations of objects." An exposition in A Treatise of Human Nature known as "Hume's guillotine" describes, for 10 points, what problem of declaring that statements about how things are cannot tell you how things should be?
Alisdair MacIntyre claims that this idea has been misunderstood by mistreating its formulator's use of the word "deduction" to mean "entailment" in a paper that suggests this idea was a rebuttal to Richard Allestree.
is-ought problem [accept “How to Derive ‘Ought’ from ‘Is’”; prompt on “Hume’s guillotine” or “Hume’s law” before mentioned; prompt on “fact/value distinction”]