def wb.lts
import bend-osdev-word64@0.1.1.0/PROOF_bits.bend as PROOFBitsimport Base
import bend-osdev-word64@0.1.1.0/proof_value.bend as P
137def wb.lts(x: Nat, y: Nat) -> {Nat.is_lt(x, 1n+y) == Nat.is_le(x, y) : Bool}:
138 Equal.sym(Bool, Nat.is_le(1n+x, 1n+y), Nat.is_lt(x, 1n+y), P.wn.le_succ(x, 1n+y))