Editing Glossary of graph theory (section)

==Symbols==
{{glossary}}

{{term|square bracket|Square brackets [ ]}}
{{defn|{{math|''G''[''S'']}} is the {{gli|induced|induced subgraph}} of a graph {{mvar|G}} for vertex subset {{mvar|S}}.}}

{{term|′|Prime symbol '}}
{{defn|The [[Prime (symbol)|prime symbol]] is often used to modify notation for graph invariants so that it applies to the [[line graph]] instead of the given graph. For instance, {{math|''&alpha;''(''G'')}} is the independence number of a graph; {{math|''&alpha;''′(''G'')}} is the matching number of the graph, which equals the independence number of its line graph. Similarly, {{math|''&chi;''(''G'')}} is the chromatic number of a graph; {{math|''&chi;''{{hsp}}′(''G'')}} is the chromatic index of the graph, which equals the chromatic number of its line graph.}}

{{glossary end}}