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Proof step 4 from proof num-neg-03 (
previous step
)
⊦ ri ≠ 0r, ri.num + (~ ri).num = 0
Heuristic simplifier applied rule simplifier
And obtained the following new goals
Proof step 5
:
⊦ 0r.num + (~ 0r).num = 0
Rule argument
Additional information