def BitLength.lt
import bend-collections-laws-math@1.0.0.0/spec/math/natural.bend as Naturalimport Base
import bend-collections-laws-math@1.0.0.0/spec/lib/common.bend as C
import bend-collections-laws-math@1.0.0.0/src/math/natural.bend as M
244def BitLength.lt(+n: Nat) -> Type:
245 {Nat.is_lt(n, C.pow2(M.bit_length(n))) == True{} : Bool}