def lists_1230

bendtorch-core@0.1.0.0 · src/tensor/axis_algebra.bend:1259

import Base

1259def lists_1230(-A: Data, +items: List<&2, A>, length: {List.length(&2, A, items) == 4n : Nat}) -> ListFacts<A, 4n, [1n, 2n, 3n, 0n], items>:
1260  match items:
1261    case Nil{}:
1262      Empty.absurd(ListFacts<A, 4n, [1n, 2n, 3n, 0n], Nil{}>, nat_clash(0n, 4n, length, {==}))
1263    case +x0 <> Nil{}:
1264      Empty.absurd(ListFacts<A, 4n, [1n, 2n, 3n, 0n], x0 <> Nil{}>, nat_clash(1n, 4n, length, {==}))
1265    case +x0 <> +x1 <> Nil{}:
1266      Empty.absurd(ListFacts<A, 4n, [1n, 2n, 3n, 0n], x0 <> x1 <> Nil{}>, nat_clash(2n, 4n, length, {==}))
1267    case +x0 <> +x1 <> +x2 <> Nil{}:
1268      Empty.absurd(ListFacts<A, 4n, [1n, 2n, 3n, 0n], x0 <> x1 <> x2 <> Nil{}>, nat_clash(3n, 4n, length, {==}))
1269    case +x0 <> +x1 <> +x2 <> +x3 <> Nil{}:
1270      Lists{{==}, {==}, {==}, {==}, {==}, {==}}
1271    case +x0 <> +x1 <> +x2 <> +x3 <> +x4 <> +tail:
1272      Empty.absurd(ListFacts<A, 4n, [1n, 2n, 3n, 0n], x0 <> x1 <> x2 <> x3 <> x4 <> tail>, nat_clash(5n+List.length(&2, A, tail), 4n, length, {==}))