def lists_102

bendtorch-core@0.1.0.0 · src/tensor/axis_algebra.bend:550

import Base

550def lists_102(-A: Data, +items: List<&2, A>, length: {List.length(&2, A, items) == 3n : Nat}) -> ListFacts<A, 3n, [1n, 0n, 2n], items>:
551  match items:
552    case Nil{}:
553      Empty.absurd(ListFacts<A, 3n, [1n, 0n, 2n], Nil{}>, nat_clash(0n, 3n, length, {==}))
554    case +x0 <> Nil{}:
555      Empty.absurd(ListFacts<A, 3n, [1n, 0n, 2n], x0 <> Nil{}>, nat_clash(1n, 3n, length, {==}))
556    case +x0 <> +x1 <> Nil{}:
557      Empty.absurd(ListFacts<A, 3n, [1n, 0n, 2n], x0 <> x1 <> Nil{}>, nat_clash(2n, 3n, length, {==}))
558    case +x0 <> +x1 <> +x2 <> Nil{}:
559      Lists{{==}, {==}, {==}, {==}, {==}, {==}}
560    case +x0 <> +x1 <> +x2 <> +x3 <> +tail:
561      Empty.absurd(ListFacts<A, 3n, [1n, 0n, 2n], x0 <> x1 <> x2 <> x3 <> tail>, nat_clash(4n+List.length(&2, A, tail), 3n, length, {==}))