3 {docs source-edge-count}
4 {docs target-edge-count}
5 {docs number-of-neighbors}
11 {docs undirected-edge-p}
12 {docs directed-edge-p}
13 {docs make-vertex-edges-container}
15 {docs vertices-share-edge-p}
17 {docs out-edge-for-vertex-p}
18 {docs in-undirected-cycle-p}
21 {docs edge-lessp-by-weight}
22 {docs edge-lessp-by-direction}
27 {docs any-undirected-cycle-p}