BroadcastProofs.indices_length: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/shape/broadcast_proofs.bend as BroadcastProofs
Lines 89-96 of bendtorch-core@0.1.0.0/src/shape/broadcast_proofs.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/shape/broadcast_proofs.bend&start_line=89&end_line=96

import Base
import bendtorch-core@0.1.0.0/src/shape/core.bend as Shape

def indices_length(+dims: List<&2, Nat>, +coordinate: Shape.Coordinate(dims)) -> {List.length(&2, Nat, dims) == List.length(&2, Nat, Shape.indices(dims, coordinate)) : Nat}:
  match dims:
    case Nil{}:
      {==}
    case +head <> +tail:
      Shape.CStep{+index, +rest} = coordinate
      %indices_length(tail, rest) : {1n+List.length(&2, Nat, tail) == 1n+_ : Nat}
      {==}

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.length
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/shape/core.bend&name=Coordinate
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/shape/core.bend&name=Coordinate.Step
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/shape/core.bend&name=indices