(1)
There are things.
(2)
It is inherent in the
fact of a thing to be
perceptible (not through
sensory data alone).
(3)
We perceive
the perceptible.
(4)
What we perceive is conditioned
by our perceiving faculties.
(5)
Alterations in our perceiving faculties
(e.g. I take my glasses off)
may alter what we perceive
of the perceptible
(e.g. everything
is blurry).
(6)
What is perceptible is,
regardless of whether or not
it is in fact perceived.
(7)
With the alterations
of statement (5)
we may only say that
what we perceive
of the perceptible(s)
has changed,
not the things whose
perceptibility is
perceived.
(8)
As such, we recognize that
perceptibles are,
independently of how
we perceive them.
(9)
We acknowledge that perceptibles
are because we perceive them and,
following (2), it is inherent in
the fact of a thing to be perceptible.