OAI/Combinatorics/Crossing/FourCycles.lean

GitHub source file

6 declarations, 0 contain sorry, 0 declared as axioms

1. abbrev OAI.Zarankiewicz.completeBipartite line 12
2. def OAI.Zarankiewicz.orientedEdgeStep line 14
3. def OAI.Zarankiewicz.walkEdgeChain line 20
4. def OAI.Zarankiewicz.fourCycleWalk line 25
5. theorem OAI.Zarankiewicz.fourCycleWalk_isCycle line 32
6. theorem OAI.Zarankiewicz.fourCycleWalk_chain line 42