Theorem: Function.Bijective.HSub.hSub.arg_a0.Bijective_rule (SciLean/Core/FunctionPropositions/Bijective.lean)

State before:
X✝ : Type ?u.2738
inst✝⁸ : Nonempty X✝
Y✝ : Type ?u.2744
inst✝⁷ : Nonempty Y✝
Z✝ : Type ?u.2750
inst✝⁶ : Nonempty Z✝
X : Type u_2
inst✝⁵ : Nonempty X
X₁ : Type ?u.2762
inst✝⁴ : Nonempty X₁
X₂ : Type ?u.2768
inst✝³ : Nonempty X₂
Y : Type u_1
inst✝² : Nonempty Y
Z : Type ?u.2780
inst✝¹ : Nonempty Z
inst✝ : AddGroup Y
f : X → Y
y : Y
hf : Bijective f
⊢ Bijective fun x => f x - y
Tactic:
sorry_proof
State after:
no goals