law le_trans
import bend-mathlib@0.8.1.0/nat.bend as Natimport Base
408# The order is transitive: a <= b and b <= c imply a <= c.
409law le_trans:
410 for a: Nat
411 for b: Nat
412 for c: Nat
413 for ab: le(a, b)
414 for bc: le(b, c)
415 le(a, c)