def lists_2031

bendtorch-core@0.1.0.0 · src/tensor/axis_algebra.bend:1487

import Base

1487def lists_2031(-A: Data, +items: List<&2, A>, length: {List.length(&2, A, items) == 4n : Nat}) -> ListFacts<A, 4n, [2n, 0n, 3n, 1n], items>:
1488  match items:
1489    case Nil{}:
1490      Empty.absurd(ListFacts<A, 4n, [2n, 0n, 3n, 1n], Nil{}>, nat_clash(0n, 4n, length, {==}))
1491    case +x0 <> Nil{}:
1492      Empty.absurd(ListFacts<A, 4n, [2n, 0n, 3n, 1n], x0 <> Nil{}>, nat_clash(1n, 4n, length, {==}))
1493    case +x0 <> +x1 <> Nil{}:
1494      Empty.absurd(ListFacts<A, 4n, [2n, 0n, 3n, 1n], x0 <> x1 <> Nil{}>, nat_clash(2n, 4n, length, {==}))
1495    case +x0 <> +x1 <> +x2 <> Nil{}:
1496      Empty.absurd(ListFacts<A, 4n, [2n, 0n, 3n, 1n], x0 <> x1 <> x2 <> Nil{}>, nat_clash(3n, 4n, length, {==}))
1497    case +x0 <> +x1 <> +x2 <> +x3 <> Nil{}:
1498      Lists{{==}, {==}, {==}, {==}, {==}, {==}}
1499    case +x0 <> +x1 <> +x2 <> +x3 <> +x4 <> +tail:
1500      Empty.absurd(ListFacts<A, 4n, [2n, 0n, 3n, 1n], x0 <> x1 <> x2 <> x3 <> x4 <> tail>, nat_clash(5n+List.length(&2, A, tail), 4n, length, {==}))