Keyword: Natural Kind
Dictionary Entry | Posted 07/03/2016
Quote from "The Fourth Curiosity"
If two kinds, A and B, are so related that of whatever singulars A could possibly be true, B would necessarily also be true, then A is said to involve B.
This necessity may be of...
Article in Journal | Posted 06/10/2015
Bellucci, Francesco (2015). Neat, Swine, Sheep, and Deer: Mill and Peirce on Natural Kinds
In the earliest phase of his logical investigations (1865–1870), Peirce adopts Mill's doctrine of real Kinds as discussed in the System of Logic and adapts it to the logical conceptions he was...