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Proof step 3 from proof div-eq-same-01 (previous step)

⊦ i = 0, i / j = i ↔ i = 0 ∨ j = 1, j = 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
i / j = i ⊦ j = 0, i = 0, j = 1

Rule argument

Additional information

Used simplifier rules: one: ⊦ i / 1 = i;