OAI/Topology/ArtinGroups/Harmonic/PositiveUpperBoundaryRank.lean

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3 declarations, 0 contain sorry, 0 declared as axioms

1. theorem OAI.HarmonicArtin.positiveUpperBoundary_rank line 12
2. theorem OAI.HarmonicArtin.positiveUpperBoundary_contractible line 51
3. theorem OAI.HarmonicArtin.positiveCellPoset_contractible line 60