more from Rom Harr

Single Idea 15888

[catalogued under 14. Science / C. Induction / 5. Paradoxes of Induction / a. Grue problem]

Full Idea

The grue problem illustrates the enormous importance that the concept of a natural-kind plays in real science.

Gist of Idea

The grue problem shows that natural kinds are central to science


Rom Harr (Laws of Nature [1993], 5)

Book Reference

Harr,Rom: 'Laws of Nature' [Duckworth 1993], p.105

A Reaction

The point is that we took emeralds to be a natural kind, but 'grue' proposes that they aren't, since stability is the hallmark of a natural kind.

Related Idea

Idea 8153 By knowing one piece of clay or gold, you know all of clay or gold [Anon (Upan)]