How to improve your Scheme-test grade (possibly)

Requirement: you must have answers to questions that I have marked as incorrect.  Other critcisms, like "test is too short", "question is confusing", etc. are not susceptible to revision and grade-improvement (sorry).

If you claim that a particular answer to a question is actually correct, when I have marked it incorrect, then show me why.  If you succeed, you will get an additional 3 points for the first such answer, 2 for the next answer (if you have one for another question) and 1 for each subsequent answer.

To do this, write into the Comments-to-Teacher: a) the exact copy of the question you wrote (if you used fancy mathematical notation on the exam, do the best you can in text) b) the exact copy of the answer you wote c) the reason it's correct, or, if you want, you can just claim that it is correct -- that's fine.

However, if, despite your attempt to claim that it's correct, I still believe it's incorrect, then you'll lose one point.  This is to discourage you from just making your claim, and making me re-evaluate it.

If you're stumped as to why I thought it was incorrect, GET HELP (I don't mean from a spiritual advisor).  Test it in Scheme, talk with another student, meditate on it.