friendship theorem
if every pair of people has exactly one common friend, then one person is friends with everyone
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friendship theorem
Summary
friendship theorem is a theorem[1]. It draws 2 Wikipedia views per month (theorem category, ranking #275 of 1,306).[2]
Key Facts
- friendship theorem's instance of is recorded as theorem[3].
- friendship is named after friendship theorem[4].
- friendship theorem's facet of is recorded as friendship graph[5].
- friendship theorem's facet of is recorded as universal vertex[6].
- friendship theorem's different from is recorded as theorem on friends and strangers[7].
- friendship theorem's statement describes is recorded as finite graph[8].
- friendship theorem's introduced in is recorded as On a problem of graph theory[9].
- friendship theorem's Metamath statement ID is recorded as friendship[10].
Why It Matters
friendship theorem draws 2 Wikipedia views per month (theorem category, ranking #275 of 1,306).[2]