Refinement.get_low: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/storage/refinement.bend as Refinement
Lines 33-44 of bendtorch-core@0.1.0.0/src/storage/refinement.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/storage/refinement.bend&start_line=33&end_line=44

import Base
import bendtorch-core@0.1.0.0/src/storage/model.bend as Model

def get_low(-T: Data, -p: Nat, -original: Array<T>, -n: U32, -i: U32,
  ys: Array<T>,
  child: Get<T, p, original, U32.shr(n), i, U32.is_lt(i, U32.shr(U32.shr(n)))>,
  ey: Model.Balanced(T, p, ys)) -> Get<T, 1n+p, ANode{original, ys}, n, i, True{}>:
  match child:
    case Get{xs, value, equal, kept, observed, ex}:
      Get{ANode{xs, ys}, value,
        Equal.cong(Array<T> & T, Array<T> & T, r => Array.swap.lo(T, ys, r),
          (xs, value), Array.get.go(T, original, U32.shr(n), i,
            U32.is_lt(i, U32.shr(U32.shr(n)))), equal),
        Equal.cong(Array<T>, Array<T>, x => ANode{x, ys}, xs, original, kept),
        observed, (ex, ey)}

Uses (13):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.get.go
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.swap.lo
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.cong
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.shr
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/storage/model.bend&name=Balanced
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/storage/refinement.bend&name=Get