more from Fraser MacBride

Single Idea 18476

[catalogued under 5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not]

Full Idea

Statements of the form 'a is F' aren't invariably positive ('a is dead'), and nor are statements of the form 'a isn't F' ('a isn't blind') always negative.

Gist of Idea

'A is F' may not be positive ('is dead'), and 'A is not-F' may not be negative ('is not blind')


Fraser MacBride (Truthmakers [2013], 2.1.4)

Book Reference

'Stanford Online Encyclopaedia of Philosophy', ed/tr. Stanford University [], p.13

A Reaction

The point is that the negation may be implicit in the predicate. There are many ways to affirm or deny something, other than by use of the standard syntax.