My code here (removed irrelevant part):
bin-op : ∀ {ℓ} (A : Set ℓ) → Set ℓ
bin-op A = A → A → A
private
record S3 {ℓ} (A : Set ℓ) : Set ℓ where
infixl 5 _×_
field
x y {e} : A
_×_ : bin-op A
assocₗ : ∀ a b c → a × b × c ≡ a × (b × c)
assocᵣ : ∀ a b c → a × (b × c) ≡ a × b × c
assocᵣ a b c rewrite assocₗ a b c = {!!}
I typed C-c C-a at the hole. Nothing happens.
Even Agda has correctly displayed the type of the hole (?0 : a × (b × c) ≡ a × (b × c)).
It should obviously been filled with a refl but it says no solution found. Why? Is this a bug?
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