Spec.bal: def of bendtorch@1.3.0.0
Import: import bendtorch@1.3.0.0/spec.bend as Spec
Lines 166-173 of bendtorch@1.3.0.0/spec.bend: https://jend.leeeet.dev/read.txt?path=bendtorch@1.3.0.0/spec.bend&start_line=166&end_line=173

import Base

# the 2^p cells from cell i summed as a balanced tree of pairs: how a GPU leaf sums its block (the device's MSE and
# cross-entropy block sums)
def bal(+p: Nat, +i: Nat) -> Sum:
  match p:
    case 0n:
      SCell{i}
    case 1n+q:
      SAdd{bal(q, i), bal(q, Nat.add(i, pw(q)))}

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/spec.bend&name=Sum
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/spec.bend&name=pw