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Logic  /  Logic 337  ·  Atom · ~20 seconds

Method of Difference

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State

If two cases differ in the effect and in exactly one factor, that factor is implicated.

Show

Identical trays, one with the sauce, one without; one diner sick. The controlled experiment, in embryo.

Watch for

The power is proportional to how truly "otherwise identical" the cases are. In the wild, they rarely are.