def lists_1203

bendtorch-core@0.1.0.0 · src/tensor/axis_algebra.bend:1202

import Base

1202def lists_1203(-A: Data, +items: List<&2, A>, length: {List.length(&2, A, items) == 4n : Nat}) -> ListFacts<A, 4n, [1n, 2n, 0n, 3n], items>:
1203  match items:
1204    case Nil{}:
1205      Empty.absurd(ListFacts<A, 4n, [1n, 2n, 0n, 3n], Nil{}>, nat_clash(0n, 4n, length, {==}))
1206    case +x0 <> Nil{}:
1207      Empty.absurd(ListFacts<A, 4n, [1n, 2n, 0n, 3n], x0 <> Nil{}>, nat_clash(1n, 4n, length, {==}))
1208    case +x0 <> +x1 <> Nil{}:
1209      Empty.absurd(ListFacts<A, 4n, [1n, 2n, 0n, 3n], x0 <> x1 <> Nil{}>, nat_clash(2n, 4n, length, {==}))
1210    case +x0 <> +x1 <> +x2 <> Nil{}:
1211      Empty.absurd(ListFacts<A, 4n, [1n, 2n, 0n, 3n], x0 <> x1 <> x2 <> Nil{}>, nat_clash(3n, 4n, length, {==}))
1212    case +x0 <> +x1 <> +x2 <> +x3 <> Nil{}:
1213      Lists{{==}, {==}, {==}, {==}, {==}, {==}}
1214    case +x0 <> +x1 <> +x2 <> +x3 <> +x4 <> +tail:
1215      Empty.absurd(ListFacts<A, 4n, [1n, 2n, 0n, 3n], x0 <> x1 <> x2 <> x3 <> x4 <> tail>, nat_clash(5n+List.length(&2, A, tail), 4n, length, {==}))