Theorem: SciLean.CDifferentiable.pi_rule (SciLean/Core/FunctionPropositions/CDifferentiable.lean)

State before:
K : Type u_1
inst✝⁵ : RCLike K
X : Type u_2
inst✝⁴ : Vec K X
Y : Type ?u.4909
inst✝³ : Vec K Y
Z : Type ?u.4920
inst✝² : Vec K Z
ι : Type u_4
inst✝¹ : IndexType ι
E : ι → Type u_3
inst✝ : (i : ι) → Vec K (E i)
f : X → (i : ι) → E i
hf : ∀ (i : ι), CDifferentiable K fun x => f x i
⊢ CDifferentiable K fun x i => f x i
Tactic:
sorry_proof
State after:
no goals