When hypothesis two asks 'just how exactly would contracting lung cancer cause someone to smoke?' I'm thinking well... because the correlation we are trying to explain is not specific on what type of smoking (is cigarette smoking implied? probably? maybe?); having lung cancer could cause someone to smoke weed.

Tom's house was broken into =c=> He confronted the burglar =c=> He had to have eye surgery =c=> My son had to go over and help =c=> Then my son rolled his car five times on the way home =c=> I'm under a lot of stress

Does anyone know why we are not using logic symbols? Ex: ~ is the logic symbol for not and v is the logic symbol for or.

Hi! I highly recommend looking up logic symbols and connectives. They are identical to the elements we are learning, but sometimes a little bit more simplified. Ex: Sufficient condition → Necessary condition (our lesson); X → Y = If X, then Y (logic symbols); Cat → Mammal = If Cat, then Mammal.