Remark 2 4 2 a Fig 1 4 2 20 d The definition of a graph does

Last updated: 9/12/2023

Remark 2 4 2 a Fig 1 4 2 20 d The definition of a graph does not allow more than one line joining two points Also it does not allow any line joining a point to itself Line joining points to itself is called a loop Fig 1 5 is a loop Fig 1 5 V 2 MULTI GRAPH Definition If more than one line joining two vertices are allowed then the resulting object is called a multi graph Lines joining the same points are called multiple lines Fig 1 6 is an example of a multi graph Fig 1 6