def lists_3021

bendtorch-core@0.1.0.0 · src/tensor/axis_algebra.bend:1829

import Base

1829def lists_3021(-A: Data, +items: List<&2, A>, length: {List.length(&2, A, items) == 4n : Nat}) -> ListFacts<A, 4n, [3n, 0n, 2n, 1n], items>:
1830  match items:
1831    case Nil{}:
1832      Empty.absurd(ListFacts<A, 4n, [3n, 0n, 2n, 1n], Nil{}>, nat_clash(0n, 4n, length, {==}))
1833    case +x0 <> Nil{}:
1834      Empty.absurd(ListFacts<A, 4n, [3n, 0n, 2n, 1n], x0 <> Nil{}>, nat_clash(1n, 4n, length, {==}))
1835    case +x0 <> +x1 <> Nil{}:
1836      Empty.absurd(ListFacts<A, 4n, [3n, 0n, 2n, 1n], x0 <> x1 <> Nil{}>, nat_clash(2n, 4n, length, {==}))
1837    case +x0 <> +x1 <> +x2 <> Nil{}:
1838      Empty.absurd(ListFacts<A, 4n, [3n, 0n, 2n, 1n], x0 <> x1 <> x2 <> Nil{}>, nat_clash(3n, 4n, length, {==}))
1839    case +x0 <> +x1 <> +x2 <> +x3 <> Nil{}:
1840      Lists{{==}, {==}, {==}, {==}, {==}, {==}}
1841    case +x0 <> +x1 <> +x2 <> +x3 <> +x4 <> +tail:
1842      Empty.absurd(ListFacts<A, 4n, [3n, 0n, 2n, 1n], x0 <> x1 <> x2 <> x3 <> x4 <> tail>, nat_clash(5n+List.length(&2, A, tail), 4n, length, {==}))