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It was very roughly proposed by [[Hume]], and is also known as 'Hume's Guillotine', but later expanded on in much greater detail by Moore. He observed that all moral statemnets, most clearly [[psuedo-syllogisms]], progress using flawed [[implicit logic]]. Take, for instance, the following common argument against [[abortion]]:
It was very roughly proposed by [[Hume]], and is also known as 'Hume's Guillotine', but later expanded on in much greater detail by Moore. He observed that all moral statemnets, most clearly [[psuedo-syllogisms]], progress using flawed [[implicit logic]]. Take, for instance, the following common argument against [[abortion]]:
Abortion is the murder of an innocent foetus.
Abortion is the murder of an innocent fetus.
Therefore, abortion is wrong.
Therefore, abortion is wrong.
Moore successfully argued that this argument misses a vital step of reasoning, and should read:
Moore successfully argued that this argument misses a vital step of reasoning, and should read:
Abortion is the murder of an innocent foetus.
Abortion is the murder of an innocent fetus.
Murder of innocents is wrong.
Murder of innocents is wrong.