Determine minmal path sets by connectivity matrix

[Sadeq]

The attached file illustrate the method
I didnt understand this actually from lecture,and i try to search inside books but also didnt find any thing.
The notes are brief so u can't get complete understanding
So anyone could help me find relevant resources or such one example only to get the idea
Thank you in advance

 

[Sadeq]

please is there any reference that may help

 

[Sadeq]

Any help please

 

[haruspex]

Sadeq, there's something strange about that PDF. It comes out misoriented 90 degrees, takes ages to display, and has chunks of text missing.