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Proof step 11 from proof remove-refsize0-one (previous step)

(∅)[n0] = mkblock(x0, lax0, m), n0 ∈ (m0 = 0 ⊃ ∅;(∅)[n, mkblock(x, lax, m0)]) ⊦ n0 = n

Heuristic nonsplitting cut applied rule cut formula

And closed the goal!

Rule argument

fma: m0 = 0

Additional information

Used simplifier rules: ⊦ n ≠ n0 → (n ∈ st[n0, ablock] ↔ n ∈ st); (s)% ⊦ ¬ n ∈ ∅; (s) Used formulas: m0 = 0