Complex.frontier_setOfPred_le_re_and_le_im

∀ (a b : ℝ), frontier {z | a ≤ z.re ∧ b ≤ z.im} = {z | a ≤ z.re ∧ z.im = b ∨ z.re = a ∧ b ≤ z.im}

Defined in: Mathlib.Analysis.Complex.ReImTopology
Cited by: 1 results in Mathlib
Foundations: Depth 165 from the axioms · uses propext, Classical.choice, Quot.sound

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