The preposition “on” in philosophy

Question

When listening to philosophical debate, the preposition “on” is frequently used referring to a principal of some sort. I’ve never heard this preposition used this way in any other parlance or vernacular. What does “on” mean in the field of philosophy and why do they use it?

Examples:

“Moral absolutes cannot exist *on atheism.*”

“*On Dr. Craig’s view*, their actions are justified.”

“*On solution number 3*, hard solipsism is irrelevant.”

In: Other

Answer 1

I always have viewed this as a shortened version of “on the basis Of” as a way of referencing the underlyng assumption or condition of a proposition.