im_apply_eq_im_or_neg_of_re_apply_eq_re — Mathlib · SciLib

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im_apply_eq_im_or_neg_of_re_apply_eq_re

Mathlib.Analysis.Complex.Isometry

URI: https://scilib.ai/kg/mathlib#LinearIsometry.im_apply_eq_im_or_neg_of_re_apply_eq_re

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