def nonzero

stelliferous@0.0.2.0 · proofs/u32_division.bend:145

import Base
import stelliferous@0.0.2.0/proofs/u32_comparison.bend as Comparison

145def nonzero(+b: U32,h: {Nat.is_lt(0n,U32.to_nat(b)) == True{} : Bool}) -> {U32.is_zero(b) == False{} : Bool}:
146  %Equal.sym(Bool,U32.is_eq(b,0),Nat.is_eq(U32.to_nat(b),U32.to_nat(0)),Comparison.eq(b,0)) : {_ == False{} : Bool}
147  nat_nonzero(U32.to_nat(b),h)