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Logic / Unit 3   Logic 103 short lesson, about 20 seconds

Illicit Major and Illicit Minor

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The idea

Distributing a term in the conclusion that wasn't distributed in its premise is an illicit process — illicit major or illicit minor, by which term offends.

In practice

All dogs are mammals; no cats are dogs; ∴ no cats are mammals. "Mammals" distributed in the conclusion, undistributed in its premise. Illicit major.

Where people slip

The conclusion claims more coverage than the premises purchased. That's the whole diagnosis.

Your place on the trail

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Unlocks

  • Nothing yet depends on this.

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