[Jprogramming] convert tacit to explicit

[Bartholomew Parkis]

I see that I can convert explicit forms into their tacit equivalents  
but how can I convert tacit forms into explicit equivalents?

I'm having trouble understanding the u@(v"(1+lv,_)) definition of  
the . operator.  What is lv?  This doesn't seem to convert to valid  
code that I can put into the interpreter.
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