TragicMonkey
Poisoned Waffles
Logic isn't something I should have to "bring up."
It's like asking an engineer for a bridge design and 1/3 of a way into the design process going "What? You never mentioned the bridge would be built in a place with Gravity!"
It is if you want to suggest ethics is based on logic. If that's what you're saying you should be able to show your work. Premise, inference, conclusion. Isn't that what logic is?
"Logic" doesn't mean "something that seems obvious but I'm unable to explain it".