def pow2_pos
import bend-ml-tensor-array@0.1.19.0/main.bend as BendMlTensorArrayimport Base
673# 1 <= 2^d
674def pow2_pos(d: Nat) -> {True{} == leb(1n, pow2(d)) : Bool}:
675 match d:
676 case 0n:
677 {==}
678 case 1n++q:
679 leb_up(1n, pow2(q), pow2(q), pow2_pos(q))