def ii_f
import bend-collections-laws-math@1.0.0.0/proofs/math/typed/f64close.bend as F64closeimport Base
import bend-collections-laws-math@1.0.0.0/src/math/f64.bend as F
43# one unfolding step each, stated so the checker compares syntactically
44def ii_f(+a: F.F64, +b: F.F64, +rel: F.F64, +at: F.F64) -> {F.ic_inf(a, b, rel, at, False{}) == F.ic_d(a, b, rel, at, F.abs(F.sub(b, a))) : Bool}:
45 {==}