dge of the internal world is derived by hypothetical reasoning<BR>
> >from our knowledge of external facts."<BR>
><BR>
> An example of what Kant claimed and what Peirce denied<BR>
> is that our knowledge of space and time is not derivable<BR>
> from perception.  P would say that everything we know about<BR>
> space and time is derivable from sensory input combined<BR>
> with abduction (hypothetical reasoning).  He would classify<BR>
> "observation" of mental imagery and perception of pain,<BR>
> headache, t