TensorChainPROOF.missed: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/autograd/tensor_chain_PROOF.bend as TensorChainPROOF
Lines 120-134 of bendtorch-core@0.1.0.0/src/autograd/tensor_chain_PROOF.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_chain_PROOF.bend&start_line=120&end_line=134

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/gradient.bend as Gradient
import bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend as Backward
import bendtorch-core@0.1.0.0/src/autograd/tensor_chain_LAWS.bend as Laws

def missed(x: Gradient.Slot, -rest: List<&1, Gradient.Slot>, +below: Nat, +target: Nat, +shape: Shape.Shape, -gradient: Core.Dynamic,
  -slots: List<&1, Gradient.Slot>, -log: Laws.Log(), -w: Gradient.Slot, -older: List<&1, Gradient.Slot>, -left: Laws.Log(),
  at: {slots == w <> older : List<&1, Gradient.Slot>},
  took: {Laws.take(Backward.Contribution{target, shape, gradient} <> log, below, w) == (Done{x}, Backward.Contribution{target, shape, gradient} <> left) : Laws.Taken()},
  out: Bumped<rest, below, target, shape, gradient, Backward.at_head(below, target), older, left>) ->
  Bumped<x <> rest, 1n+below, target, shape, gradient, False{}, slots, log>:
  Bumped{state, bumped, pushed} = out
  match state:
    case Fail{error}:
      Bumped{Fail{error}, Equal.cong(Laws.Slots(), Laws.Slots(), result => Backward.prepend(Gradient.Slot, x, result), Fail{error},
        Backward.bump(rest, below, target, shape, gradient, Backward.at_head(below, target)), bumped), Unit{}}
    case Done{pending}:
      Bumped{Done{x <> pending}, Equal.cong(Laws.Slots(), Laws.Slots(), result => Backward.prepend(Gradient.Slot, x, result), Done{pending},
        Backward.bump(rest, below, target, shape, gradient, Backward.at_head(below, target)), bumped),
        Cell{w, older, Backward.Contribution{target, shape, gradient} <> left, at, took, pushed}}

Uses (20):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.cong
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Unit
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/gradient.bend&name=Slot
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend&name=Contribution
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend&name=at_head
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend&name=bump
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend&name=prepend
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_chain_LAWS.bend&name=Log
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_chain_LAWS.bend&name=Slots
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_chain_LAWS.bend&name=Taken
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_chain_LAWS.bend&name=take
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_chain_PROOF.bend&name=Bumped
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_chain_PROOF.bend&name=Cell
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/shape/core.bend&name=Shape
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/core.bend&name=Dynamic