Scalar.csub: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/crypto/ed25519/scalar.bend as Scalar
Lines 29-31 of bend-collections@1.0.0.0/src/crypto/ed25519/scalar.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/crypto/ed25519/scalar.bend&start_line=29&end_line=31

import Base
import bend-collections@1.0.0.0/src/crypto/curve25519/field.bend as F

# x - L when x >= L, else x (x tight, x < 2 L)
def csub(+x: List<&2, U32>) -> List<&2, U32>:
  F.csub_fin(F.carry(F.addl(x, comp_l()), 0), 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=U32
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/crypto/curve25519/field.bend&name=addl
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/crypto/curve25519/field.bend&name=carry
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/crypto/curve25519/field.bend&name=csub_fin
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/crypto/ed25519/scalar.bend&name=comp_l