PHL309 Logic, Language, and Thought
Professor: Craig DeLancey
Office: Marano 212A
Read the Allegory of the Cave section of Plato's Republic.
You can read this by reading the first half of book 8, which is
available for free here.
Optional: if you are a virtuous human being and want to impress me,
read also the
short dialogue The Meno by Plato.
Please read Book 1 of Euclid's Elements. You are reading
just to familiarize yourself with how Euclid thought and argued.
You'll find you know everything he says; just note how he arrives at
his conclusions. An online version can be found here.
Answer the following questions; you can either hand me hardcopy, or answer
them on BlackBoard (I'm not sure I set up the BlackBoard correctly! Let me
- Is Euclid a Platonist? That is, how do you think that he
believes he knows the things he claims to know?
- Consider postulate 5. As we'll see this semester, this is
a very important postulate. Do you agree with it? That is, in
your view, is it true? If you believe it is true, how do you
think you know that it is true? If you doubt it, why would you
Read the selection from
Aristotle. Come to class prepared to explain what
Aristotle's view is on the infinite.
Reading. Read the selection from Galileo's
Two New Sciences: First Day, from pages 11  to 28 .
I emailed to you the prefered translation. If you didn't get that
email let me know.
Also, a fair translation is freely available
A brief question for you to answer: Galileo considers a
reason why some things may hold together. He uses the two
slabs of marble example to illustrate the idea. What is this
reason? Do we consider it today sufficient explanation of why
things hold together?
Reading. Read from Galileo's
Two New Sciences: First Day, from pages 28  to 35 .