All Jamaicans are weed smokers. At least one weed smoker is not a heroine addict. Therefore, At least one heroine addict is not a Jamaican.

i) Convert it into an enthymeme. (2 marks)

j) Briefly explain how you know that the converted edition of the argument is truly an enthymeme. (2 mark)

k) Use your own substitution instance to demonstrate how contraries work. (2 marks)

l) Use some substitution instance to show how sub-contraries work. (2 marks)