etant' sign, determined or created by it,
| into the same sort of  correspondence (or a lower implied sort) with
| something, 'C', its 'object', as that in which itself stands to 'C'.
| This definition no more involves any reference to human thought than
| does the definition of a line as the place within which a particle
| lies during a lapse of time.  (Peirce, NEM 4, 54).
|
| It is from this definition, together with a definition of &quot;formal&quot;,
| that I deduce mathematically the principles of logi