add — Mathlib

English

If s is almost everywhere constant with respect to μ, then aestabilizer is top.

Русский

Если s почти везде константа по μ, то aestabilizer — верх.

LaTeX

$$$(hs: EventuallyConst s (ae μ)) \Rightarrow aestabilizer G μ s = \top$$$

Lean4

@[to_additive]
instance add [SMulInvariantMeasure M α μ] [SMulInvariantMeasure M α ν] : SMulInvariantMeasure M α (μ + ν) :=
  ⟨fun c _s hs => show _ + _ = _ + _ from congr_arg₂ (· + ·) (measure_preimage_smul c hs) (measure_preimage_smul c hs)⟩

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