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Proof step 1 from proof leninv-invlast-2 (conclusion)
⊦ leninv(nσ) = ⌜n⌝ + ⌜1⌝ ∧ # nσ = # nσ0 ∧ # nσ0 = ⌜m⌝ + ⌜1⌝ ∧ stutf(nσ) → nσ[m] = n
Heuristic simplifier applied rule simplifier
And obtained the following new goals
Proof step 2
:
leninv(nσ) = ⌜n⌝ + ⌜1⌝ , # nσ = # nσ0, # nσ0 = ⌜m⌝ + ⌜1⌝ , stutf(nσ) ⊦ nσ[m] = n
Rule argument
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