I wrote something in response, but then saw that the Wiki article on causality was far better than what I wrote, so have a look at that.
https://en.wikipedia.org/wiki/Causality
https://en.wikipedia.org/wiki/Necessity_and_sufficiency
I wrote something in response, but then saw that the Wiki article on causality was far better than what I wrote, so have a look at that.
https://en.wikipedia.org/wiki/Causality
https://en.wikipedia.org/wiki/Necessity_and_sufficiency