[Jprogramming] Problem with < (box) and > (open)

[Jacques Bailhache]

According to https://www.jsoftware.com/help/dictionary/d020.htm :
 Open is the inverse of box, that is, ><y is y .
But :
   ] 123
123
   (><]) 123
0
   (>(<])) 123
1
How do you explain I get different results ?
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