Read article from: 
<br><i>New Scientist</i>
<br>on the 150th anniversary of George Boole's birth, and try to work
 out/understand the examples of
 applications of Boolian logic for circuits, AIDS epidemic, 
 computer adder and multiplier, etc.
<br>
<br> Don't forget to keep notes of your outlines and thoughts in
 your class journal.
<br>
<br>Note: this discussion will be postponed until class06, because
we will go to the `UGLy' (undergraduate library) for a class on the use
of the library and its resources. See email_5.0 for details of where to
go.