Theorem: derivative_universal (Katydid/Conal/Calculus.lean)

State before:
α : Type u_1
⊢ (a : α) → δ' 𝒰 a ≡ 𝒰
Tactic:
intro a
State after:
α : Type u_1
a : α
⊢ δ' 𝒰 a ≡ 𝒰

State before:
α : Type u_1
a : α
⊢ δ' 𝒰 a ≡ 𝒰
Tactic:
constructor
State after:
case a
α : Type u_1
a : α
⊢ δ' 𝒰 a = 𝒰

State before:
case a
α : Type u_1
a : α
⊢ δ' 𝒰 a = 𝒰
Tactic:
rfl
State after:
no goals