def definition def or abbrev

`inFreqBand`

No prose has been written for this declaration yet. The Lean source and graph data below render without it.

formal statement (Lean)

 234def inFreqBand (f low high : ℝ) : Prop := low ≤ f ∧ f < high

Definition body.

 235
 236/-- The Schumann fundamental sits just below the theta/alpha boundary.
 237    f(1) ∈ [4, 8) → theta band. -/

From the project-wide theorem graph. These declarations reference this one in their body.

EarthBrainResonanceCert in IndisputableMonolith.Physics.EarthBrainResonance decl_use
harmonic1_in_theta in IndisputableMonolith.Physics.EarthBrainResonance decl_use
harmonic2_in_beta in IndisputableMonolith.Physics.EarthBrainResonance decl_use
harmonic3_in_beta in IndisputableMonolith.Physics.EarthBrainResonance decl_use
harmonic4_in_beta in IndisputableMonolith.Physics.EarthBrainResonance decl_use
harmonic5_in_gamma in IndisputableMonolith.Physics.EarthBrainResonance decl_use
schumann_spans_eeg_bands in IndisputableMonolith.Physics.EarthBrainResonance decl_use

Lean names referenced from this declaration's body.

alpha in IndisputableMonolith.Constants.Alpha decl_use
band in IndisputableMonolith.Foundation.PreLogicalCost decl_use
theta in IndisputableMonolith.NumberTheory.RiemannHypothesis.BRFPlumbing decl_use