diff options
Diffstat (limited to 'FinMap.agda')
| -rw-r--r-- | FinMap.agda | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/FinMap.agda b/FinMap.agda index 81862f6..ff5dda7 100644 --- a/FinMap.agda +++ b/FinMap.agda @@ -72,7 +72,7 @@ lemma-from-just : {A : Set} → {x y : A} → _≡_ {_} {Maybe A} (just x) (just lemma-from-just refl = refl lemma-lookupM-restrict : {A : Set} {n : ℕ} → (i : Fin n) → (f : Fin n → A) → (is : List (Fin n)) → (a : A) → lookupM i (restrict f is) ≡ just a → f i ≡ a -lemma-lookupM-restrict {A} i f [] a p = lemma-just≢nothing (trans (sym p) (lemma-lookupM-empty i)) +lemma-lookupM-restrict i f [] a p = lemma-just≢nothing (trans (sym p) (lemma-lookupM-empty i)) lemma-lookupM-restrict i f (i' ∷ is) a p with i ≟ i' lemma-lookupM-restrict i f (.i ∷ is) a p | yes refl = lemma-from-just (begin just (f i) |