def first_spared

bendtorch-core@0.1.0.0 · src/autograd/tensor_backward_PROOF.bend:179

import Base
import bendtorch-core@0.1.0.0/src/shape/core.bend as Shape
import bendtorch-core@0.1.0.0/src/tensor/core.bend as Core
import bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend as Backward
import bendtorch-core@0.1.0.0/src/autograd/tensor_backward_LAWS.bend as Laws

179def first_spared(+id: Nat, +b: Nat, +right: Shape.Shape, x: Core.Dynamic, -y: Core.Dynamic,
180  other: {Nat.is_eq(id, b) == False{} : Bool}, pair: Core.Dynamic & Core.Dynamic) ->
181  {Laws.sends_to(id, Backward.nt_alone_first(b, right, x, y, pair)) == False{} : Bool}:
182  match pair:
183    case (g, copy):
184      right_spared(id, b, right, y, g, other, copy, Core.clone_dynamic(x))