Is It True That Tarski Sky is Blue?

Ian Goddard (
Sat, 23 May 1998 03:53:04 -0400

Christian Whitaker (

>I suppose one could solve the vagueness of blue by assigning it a strict
>definition. Blue is light with a wavelength of 550 nm. Given such a
>definition, the truth value of the statement 'le ciel est bleu' must be
>no, as the value will be something other than precisely 550 nm, and will
>fluctuate across the horizon and from second to second as light is
>marginally refracted by water vapor and other chemicals inthe

IAN: The point is that a given
statement X is true to the degree
it accurately maps reality. "Blue"
may be said to be a broad range
of colors that are "bluish."

The truth is primarily physical
things, secondarily the degree of
accuracy that words relate to things.
Indeed, fuzzy logic helps to define such.

IAN Williams Goddard ------>
Statements T r u t h A defines -A
a -A defines A
A: x is A b A -A
l T F A set is defined
-A: x is -A e F T by its members, thus
? ? A & -A contain each other.
H O L I S M --->