This Problem Sheet is based on Lectures 18 and 19.

• Problem 1 is hell. Enjoy. 😈
• Problem 2 is much prettier.
• Problem 3 is linear algebra.
• Problem 4 looks horrendous, but it’s actually quite short. If you are scared, try proving the result first for $\mathcal{A}(A,B) = A \otimes B$.
• Problem 5 identifies all possible tensor derivations.