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feat: add Coe (α → Bool) (α → Prop) and Coe (α → α → Bool) (α → α → Prop) #5088

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feat: add Coe (α → Bool) (α → Prop) and Coe (α → α → Bool) (α → α → Prop) #5088

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6 changes: 6 additions & 0 deletions src/Init/Coe.lean
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Original file line number Diff line number Diff line change
Expand Up @@ -313,6 +313,12 @@ instance optionCoe {α : Type u} : Coe α (Option α) where
instance subtypeCoe {α : Sort u} {p : α → Prop} : CoeOut (Subtype p) α where
coe v := v.val

instance boolPredToPred : Coe (α → Bool) (α → Prop) where
coe r := fun a => Eq (r a) true

instance boolRelToRel : Coe (α → α → Bool) (α → α → Prop) where
coe r := fun a b => Eq (r a b) true

/-! # Coe bridge -/

/--
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