upstream some list_numbers lemmas from Perennial
Also rename seq_S_end_app
to seq_S_snoc
, which I think better matches our usual name for lemmas involving _ ++ [_]
.
The proofs are by @tchajed.
Also rename seq_S_end_app
to seq_S_snoc
, which I think better matches our usual name for lemmas involving _ ++ [_]
.
The proofs are by @tchajed.