You
are
now
going
to
be
randomly
divided
into
3
break
-
out
rooms
.
<
br
/><
br
/>
Please
try
to
discuss
the
question
"
What
is
a
formal
system
?"
and
why
does
Douglas
Hofstadter
represents
it
as
a
"
tree
"
in
his
marvelous
book
"
Godel
,
Escher
,
Bach
"
?