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Proof step 2 from proof size-fill-h (previous step)

⊦ # fill(ar, a, m, n) = # ar

User applied rule structural induction

And obtained the following new goals

Proof step 3:
∀ ar, a, m. # fill(ar, a, m, n0) = # ar ⊦ # fill(ar, a, m, n0 +1) = # ar

Rule argument

indvar: n

Additional information

Used simplifier rules: Fill-zero: ⊦ fill(ar, a, m, 0) = ar;%nat freely generated by 0, +1;;