def lists_0213

bendtorch-core@0.1.0.0 · src/tensor/axis_algebra.bend:860

import Base

860def lists_0213(-A: Data, +items: List<&2, A>, length: {List.length(&2, A, items) == 4n : Nat}) -> ListFacts<A, 4n, [0n, 2n, 1n, 3n], items>:
861  match items:
862    case Nil{}:
863      Empty.absurd(ListFacts<A, 4n, [0n, 2n, 1n, 3n], Nil{}>, nat_clash(0n, 4n, length, {==}))
864    case +x0 <> Nil{}:
865      Empty.absurd(ListFacts<A, 4n, [0n, 2n, 1n, 3n], x0 <> Nil{}>, nat_clash(1n, 4n, length, {==}))
866    case +x0 <> +x1 <> Nil{}:
867      Empty.absurd(ListFacts<A, 4n, [0n, 2n, 1n, 3n], x0 <> x1 <> Nil{}>, nat_clash(2n, 4n, length, {==}))
868    case +x0 <> +x1 <> +x2 <> Nil{}:
869      Empty.absurd(ListFacts<A, 4n, [0n, 2n, 1n, 3n], x0 <> x1 <> x2 <> Nil{}>, nat_clash(3n, 4n, length, {==}))
870    case +x0 <> +x1 <> +x2 <> +x3 <> Nil{}:
871      Lists{{==}, {==}, {==}, {==}, {==}, {==}}
872    case +x0 <> +x1 <> +x2 <> +x3 <> +x4 <> +tail:
873      Empty.absurd(ListFacts<A, 4n, [0n, 2n, 1n, 3n], x0 <> x1 <> x2 <> x3 <> x4 <> tail>, nat_clash(5n+List.length(&2, A, tail), 4n, length, {==}))