comment

febc4054 · Michael Sammler · e9cbc3cf · febc4054
Commit febc4054 authored Nov 25, 2021 by Michael Sammler
--- a/theories/lithium/base.v
+++ b/theories/lithium/base.v
@@ -222,6 +222,7 @@ Proof.
  split => //; by apply nil_length_inv.
 Qed.

+(* TODO: replace with upsteamed version *)
 Lemma take_elem_of {A} (x : A) n l:
  x ∈ take n l ↔ ∃ i, (i < n)%nat ∧ l !! i = Some x.
 Proof.