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Proof step 12 from proof swap-from-to (previous step)

¬(⌜m⌝ < # σ ∧ finp(σ)), #((σ from m) to n) = #((σ to m + n) from m), #(σ from m) < ⌜n⌝ , ⌜n0⌝ < #((σ from m) to n) ⊦ ((σ from m) to n)[n0] = ((σ to m + n) from m)[n0], # σ < ⌜m⌝ + ⌜n⌝

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 13:
#((σ from m) to n) = #((σ to m + n) from m), #(σ from m) < ⌜n⌝ , ⌜n0⌝ < #((σ from m) to n) ⊦ ((σ from m) to n)[n0] = ((σ to m + n) from m)[n0], # σ < ⌜m⌝ + ⌜n⌝ , ⌜m⌝ < # σ ∧ finp(σ)

Proof step 12 from proof swap-from-to (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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