theorem extracted_formal_statement_23.{u_2} {E : Type u_2} [inst : NormedAddCommGroup E] [inst_1 : CompleteSpace E]
  [inst_2 : NormedSpace ℝ E] (c : E) : ENNReal.toReal 1 • c = c := sorry

State before:
Ω : Type u_1
inst✝⁴ : MeasurableSpace Ω
μ : Measure Ω
inst✝³ : IsProbabilityMeasure μ
E : Type u_2
inst✝² : NormedAddCommGroup E
inst✝¹ : CompleteSpace E
inst✝ : NormedSpace ℝ E
c : E
this : μ Set.univ = 1
⊢ ENNReal.toReal 1 • c = c

Tactic: simp

State after:

Relevant lemmas: