existential fallacy

<logic> the formal fallacy committed in a categorical syllogism that is invalid because it has two universal premises and a particular conclusion. Example: "All inhabitants of another planet are friendly people, and all Martians are inhabitants of another planet. Therefore, some Martians are friendly people."

[A Dictionary of Philosophical Terms and Names]

<2001-10-29>

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Nearby terms: exclusive premises « existence « existence proof « existential fallacy » existential import » existential instantiation » existentialism