⍝ Variable-wise: apply ⍺⍺ to each var in space ⍵:

    ⎕ex'Alpha'                  ⍝ global var set by test function.
    ⎕ex⍪⎕a                      ⍝ free up names A..Z
    A←⎕io⊃⎕a{⍎⍺,'←⍵'}¨⍳⍴⎕a      ⍝ 26 vars.
    (⍳⍴⎕a)≡+vwise ⎕this         ⍝ value of each var in space.
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