Spec.outer: def of bendtorch@1.3.0.0
Import: import bendtorch@1.3.0.0/spec.bend as Spec
Lines 52-58 of bendtorch@1.3.0.0/spec.bend: https://jend.leeeet.dev/read.txt?path=bendtorch@1.3.0.0/spec.bend&start_line=52&end_line=58

import Base

# g ⊗ v: row i is g[i]·v (a linear layer's weight gradient, dW = dy ⊗ x)
def outer(g: List<&2, Nat>, +v: List<&2, Nat>) -> List<&2, List<&2, Nat>>:
  match g:
    case Nil{}:
      Nil{}
    case Con{gi, gt}:
      vscale(gi, v) <> outer(gt, v)

Uses (3):
  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/spec.bend&name=vscale