Yes, that river.
I will show my Evidence students various images of inference and proof. I mean literal images (pictures).
Of course, I'll show them -- or they will see -- various other things as well.
![](http://1.bp.blogspot.com/_RQJPkYyBcLU/THcHqT0WpkI/AAAAAAAAB90/UxEyQYvlURw/s400/gen.gif)
It's here: the law of evidence on Spindle Law. See also this post and this post.