Spec.lin_bwd: def of bendtorch@1.3.0.0
Import: import bendtorch@1.3.0.0/spec.bend as Spec
Lines 94-96 of bendtorch@1.3.0.0/spec.bend: https://jend.leeeet.dev/read.txt?path=bendtorch@1.3.0.0/spec.bend&start_line=94&end_line=96

import Base
import bendtorch@1.3.0.0/main.bend as T

# dx = Wᵀ·dy, and dW += dy ⊗ x
def lin_bwd(+w: List<&2, List<&2, Nat>>, +x: List<&2, Nat>, +dy: List<&2, Nat>, g: List<&2, List<&2, Nat>>) -> T.Bwd<List<&2, List<&2, Nat>>, List<&2, Nat>>:
  T.Bwd{w, mtv(w, dy), madd(g, outer(dy, x))}

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=Nat
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/main.bend&name=Bwd
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/spec.bend&name=madd
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/spec.bend&name=mtv
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/spec.bend&name=outer