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Ingy döt Net 2013-04-11 01:07:29 -07:00
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; procedures
to square :x
output :x * :x
end
show defined? "x ; true
show procedure? "x ; true (also works for built-in primitives)
erase "x
show defined? "x ; false
show square 3 ; I don't know how to square
; names
make "n 23
show name? "n ; true
ern "n
show name? "n ; false
show :n ; n has no value