mon<(⌜nl⌝ ), ∀ nl0, np. # nl0 < # nl → mon<(⌜nl0⌝ ) → mon<(rem(⌜nl0⌝ , np)) ⊦ mon<(rem(⌜nl⌝ , np))
Used simplifier rules: <; (wellfounded) Used terms: # nl