The Commens Dictionary
Quote from ‘A Theory of Probable Inference’
Corresponding to induction, we have the following mode of inference: [—]
M has, for example, the numerous marks P’, P”, P”’, etc.,
S has the proportion r of the marks P’, P”, P”’, etc.;
Hence, probably and approximately, S has an r-likeness to M.
Thus, we know, that the ancient Mound-builders of North America present, in all those respects in which we have been able to make the comparison, a limited degree of resemblance with the Pueblo Indians. The inference is, then, that in all respects there is about the same degree of resemblance between these races.
If I am permitted the extended sense which I have given to the word “induction,” this argument is simply an induction respecting qualities instead of respecting things. [—]
I call this induction of characters hypothetic inference, or, briefly, hypothesis.