
      ⍝ problems encountered (remove if solved) ...
      ⍝
      ]XTERM off

      )ERASE ∆N
      ∇Z←∆N B
      ⍝ inifinite recursion
      ∆N B
      ∇

⍝      ∆N 52


      )ERASE QQ
      ∇Z←QQ
       Z←'"'
      ∇

      1,QQ
1 "
      QQ,1
" 1


      ⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝
      X←1 2 3
      X←X

      ⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝⍝

      )CHECK
OK      - no stale functions
OK      - no stale values
OK      - no stale indices
OK      - no duplicate parents

      ]XTERM ON
      )SI

