Introduction to Philosophy | Notes | This is not a substitute for coming
to class | Richard Lee |

Philosophy 2003 C 001 | Copyright © 1999, Richard Lee | Spring 1999 | |

(Moreland P 238a)

For all x, for all y, if x is the same thing as y, then for any property P, x has property P if and only if Y has property P.

In other words, if M is the same thing as B, then whatever is true of M is true of B--and vice versa.

So, if my *thought* that the paper is due soon is *identical* to
some state of my *brain*, then whatever is true of that
*thought* is true of that *brainstate*, and whatever is true of
the *brainstate* is true of the *thought*.

Richard Lee,