more from Fraser MacBride

Single Idea 18478

[catalogued under 10. Modality / A. Necessity / 6. Logical Necessity]

Full Idea

It is almost universally acknowledged that Wittgenstein's plan to show all necessity is logical necessity ended in failure - indeed foundered upon the very problem of explaining colour incompatibilities.

Gist of Idea

Wittgenstein's plan to show there is only logical necessity failed, because of colours


Fraser MacBride (Truthmakers [2013],

Book Reference

'Stanford Online Encyclopaedia of Philosophy', ed/tr. Stanford University [], p.14

A Reaction

I'm not sure whether you can 'show' that colour incompatibility is some sort of necessity, though intuitively it seems so. I'm thinking that 'necessity' is a unitary concept, with a wide variety of sources generating it.

Related Idea

Idea 9442 The only necessity is logical necessity [Wittgenstein]