English
OfReal preserves minima: ENNReal.ofReal(min(x,y)) = min(ENNReal.ofReal x, ENNReal.ofReal y).
Русский
OfReal сохраняет минимум: ENNReal.ofReal(min(x,y)) = min(ENNReal.ofReal x, ENNReal.ofReal y).
LaTeX
$$$ \operatorname{ofReal}(\min(x,y)) = \min(\operatorname{ofReal}(x), \operatorname{ofReal}(y)) $$$
Lean4
@[simp]
theorem ofReal_min (x y : ℝ) : ENNReal.ofReal (min x y) = min (.ofReal x) (.ofReal y) :=
ofReal_mono.map_min