proofs/math/typed/f64ofnat.bend checks

import Base
import ../../../spec/lib/common.bend as C
import ../../../spec/math/f64.bend as SF
import ../../../spec/math/w64.bend as SW
import ../../../src/math/f64.bend as F
import ../../../src/math/w64.bend as X
import ../../../src/math/natural.bend as M
import ../../lib/nat.bend as N
import ../../lib/logic.bend as L
import ../../lib/lemmas/proofs/nat_algebra.bend as NA
import ../natural/bits.bend as BT
import ../../lib/u32half.bend as UHX
import ./width.bend as WW
import ./w64sh.bend as SH
import ./f64round.bend as FR
import ./f64rtools.bend as RT
import ./f64bl.bend as BL