About
A path is a sequence of edges.
How to get from a node A to a node B.
If two nodes are connected only by one path, there is no cycle
A sequence of edges <math>[\{x_1, x_2\}, \{x_2, x_3\}, \{x_3, x_4\}, \dots , \{x_{k_1}, x_k\}]</math> is called a <math>x_1-to-x_k</math> path.
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Example
Main Quad-to-Gregorian Quad paths in the graph:
- one goes through “Wriston Quad” ,
- one goes through “Keeney Quad”
