Diagramming

[stol1989]

Is it possible to diagram following statement?
It is mistake to conclude that A-->B.
If it is mistake to conclude that B is necessary for A then B is not necessary for A. But if B is not necessary do we know
that A-->~B? It seems to me that in this case B is kind of floater that is not linked with A. So I can suggest A-->? that doesn't make much sense .
Thank you!

[tommywallach]

Hey Stol,

Remember, you can't diagram statements that aren't definitive causal statements (anything with "maybes" and "sometimes"). This is the equivalent of that. They are saying we don't know if A causes B. There's no way to diagram that, and you shouldn't even bother.

Hope that helps!

-t