OAI/Algebra/FrobeniusObstruction/Retractions.lean

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3 declarations, 0 contain sorry, 0 declared as axioms

1. theorem OAI.BoundaryOnly.FormalObstruction.retraction_core line 15
2. theorem OAI.BoundaryOnly.FormalObstruction.kernel_retraction_core line 97
3. theorem OAI.BoundaryOnly.FormalObstruction.parity_retraction line 115