OAI/Combinatorics/Crossing/SegmentClosedIncidence.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

1. theorem OAI.Zarankiewicz.closedSegmentsMeet_iff_nonempty_inter line 9
2. theorem OAI.Zarankiewicz.not_closedSegmentsMeet_of_disjoint line 25