ReduceParallelProof.span_one: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/autograd/reduce_parallel_proof.bend as ReduceParallelProof
Lines 386-388 of bendtorch-core@0.1.0.0/src/autograd/reduce_parallel_proof.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/autograd/reduce_parallel_proof.bend&start_line=386&end_line=388

import Base
import bendtorch-core@0.1.0.0/src/storage/arith.bend as Arith
import bendtorch-core@0.1.0.0/src/autograd/reduce.bend as Reduce

def span_one(+left: Nat, +extent: Nat, +single: {Nat.is_eq(Reduce.span(left, extent), 1n) == True{} : Bool}) ->
  {Reduce.span(left, extent) == 1n : Nat}:
  Arith.eq_true(Reduce.span(left, extent), 1n, single)

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_eq
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/reduce.bend&name=span
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/storage/arith.bend&name=eq_true