8a1fc68e - feat(measure_theory/measure/with_density_vector_measure): `with_densityᵥ` of a real function equals the density of the pos part - density of the neg part (#9215)
feat(measure_theory/measure/with_density_vector_measure): `with_densityᵥ` of a real function equals the density of the pos part - density of the neg part (#9215)