Markers Comments

    The only error that was common throughout the papers was on question
4(c).  When taking the basis of a union of two spans, many students
stated
that all elements that were not duplicated would be included.  The use
of
Theorem 2.8 to show the inequality was infrequent.

Marking Scheme

Assignment 4         total 35 marks

Problem 1.  #9 in the text sect. 4.3                           total 10 marks

Problem 3.  part b                                             total 10 marks

Problem 4.  parts a,b,c  5 marks each                          total 15 marks