YES

# Parallel rule labeling (Zankl et al. 2015).

Consider the left-linear TRS R:

  c() -> c()
  h(a(),h(f(b()),c())) -> c()

All parallel critical peaks (except C's) are decreasing wrt rule labeling:

  phi(c() -> c()) = 1
  phi(h(a(),h(f(b()),c())) -> c()) = 1

  psi(c() -> c()) = 1
  psi(h(a(),h(f(b()),c())) -> c()) = 1