bijective_iff_bijective_of_iUnion_eq_univ — Mathlib · SciLib

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bijective_iff_bijective_of_iUnion_eq_univ

Mathlib.Data.Set.Lattice.Image

URI: https://scilib.ai/kg/mathlib#Set.bijective_iff_bijective_of_iUnion_eq_univ

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