Complex.frontier_setOf_le_im

Deprecated since 2026-07-09Use Complex.frontier_setOfPred_le_im instead.

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

Alias of Complex.frontier_setOfPred_le_im.

Defined in: Mathlib.Analysis.Complex.ReImTopology
Cited by: 0 results in Mathlib
Foundations: Depth 168 from the axioms · uses propext, Classical.choice, Quot.sound

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