∀ a. rev(mklist(a, n0)) = mklist(a, n0) ⊦ rev(mklist(a, n0 +1)) = mklist(a, n0 +1)
Used simplifier rules: mk-zero: ⊦ mklist(a, 0) = [];%rev-e: ⊦ rev([]) = [];%nat freely generated by 0, +1;;