Rounds.vec: def of bend-collections-laws-math@1.0.0.0
Import: import bend-collections-laws-math@1.0.0.0/proofs/math/random/chacha8/rounds.bend as Rounds
Lines 14-19 of bend-collections-laws-math@1.0.0.0/proofs/math/random/chacha8/rounds.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-math@1.0.0.0/proofs/math/random/chacha8/rounds.bend&start_line=14&end_line=19

import Base
import bend-collections-laws-math@1.0.0.0/src/math/random/chacha8/block.bend as B
import bend-collections-laws-math@1.0.0.0/spec/math/random/chacha8rand.bend as S

# the state as the RFC list x[0..15]; like S.key_list on a key, it is stuck
# on an abstract state, so the checker never unfolds rounds of symbolic
# words it does not have to compare
def vec(v: B.Vector) -> List<&2,U32>:
  match v:
    case B.V{a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14,a15}: [a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14,a15]

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/src/math/random/chacha8/block.bend&name=Vector