Logic / Unit 7 Logic 336 short lesson, about 20 seconds
Mill's Method of Agreement
Captions available
The idea
If the cases where the effect occurs share exactly one factor, that factor is the candidate cause.
In practice
Five sick diners, five different meals, one shared dish.
Where people slip
"Exactly one shared factor" is an idealization — real cases share dozens. Agreement narrows the field; it doesn't close it.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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