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f ← ⊢⌈∘⍳⍴⍨ ⎕ ← f 2 ⎕ ← f 3 ⎕ ← f 4⍴⍨⍴⊢
Try it online!Try it online!
f ← ⊢⌈∘⍳⍴⍨ ⎕ ← f 2 ⎕ ← f 3 ⎕ ← f 4
Try it online!
⍴⍨⍴⊢
