tify as distinctive of signs.

One version of Peirce's sign definition is especially useful for
the present purpose.  It establishes for signs a fundamental role
in logic and is stated in terms of abstract relational properties
that are flexible enough to be interpreted in the materials of
dynamic systems.  Peirce gave this definition of signs in his
1902 &quot;Application to the Carnegie Institution&quot;:

| Logic is 'formal semiotic'.  A sign is something, 'A', which brings
| something, 'B', its 'interpr