lean4-htt/tests/lean/shadow.lean
2020-09-17 08:57:54 -07:00

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import Lean
new_frontend
theorem ex1 {α} (x : α) (h : x = x) (x : α) : x = x :=
h
set_option pp.sanitizeNames false in
theorem ex2 {α} (x : α) (h : x = x) (x : α) : x = x :=
h -- this error is confusing because we have disabled `pp.sanitizeNames`
def foo1 {α} [Inhabited α] (inst inst : α) : {β δ : Type} → α → β → δ → α × β × δ :=
_
set_option pp.sanitizeNames false in
def foo2 {α} [Inhabited α] (inst inst : α) : {β δ : Type} → α → β → δ → α × β × δ :=
_
def foo3 {α β} (inst : α) (inst : β) (b : β) (inst : α) [Inhabited α] : {β δ : Type} → α → β → δ → α × β × δ :=
_