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Proof step 1 from proof cast-law-shift-snd-zr (conclusion)

5 ≤ i ⊦ j0 i>>> j = j0 i>>> cast(i, j)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
5 ≤ i, 0 < i, 0 ≤ i ⊦ j0 i>>> j = j0 i>>> cast(i, j)

Rule argument

Additional information

Used simplifier rules: ⊦ i ≤ j ∧ 0 < i → 0 < j; (forward)% ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward)