TwoList.len_take: def of bend-collections-laws-math@1.0.0.0
Import: import bend-collections-laws-math@1.0.0.0/proofs/lib/two_list.bend as TwoList
Lines 58-59 of bend-collections-laws-math@1.0.0.0/proofs/lib/two_list.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-math@1.0.0.0/proofs/lib/two_list.bend&start_line=58&end_line=59

import Base
import bend-collections-laws-math@1.0.0.0/proofs/lib/list.bend as LL
import bend-collections-laws-math@1.0.0.0/spec/lib/common.bend as SC

def len_take(-T: Data, +xs: List<&2, T>, +n: Nat, +h: {Nat.is_le(n, SC.length(T, xs)) == True{} : Bool}) -> {SC.length(T, SC.take(T, xs, n)) == n : Nat}:
  LL.sc_length_take(T, xs, n, h)

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  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=Base/base.bend&name=Nat.is_le
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/proofs/lib/list.bend&name=sc_length_take
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/spec/lib/common.bend&name=length
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/spec/lib/common.bend&name=take