I was having an argument on IRC over exactly what happened to a list in boolean context. My opponents were arguing that an empty list in boolean context is false, where as I was arguing that a list can't exist in scalar context. However then they brought several one liners that seemed to demonstrate empty lists being false. I wasn't sure exactly what was going on, but I was dead certain that I was right. So I come here. Anyone know exactly what happens with empty lists and boolean context?

Below are several one liners that seem to demonstrate empty lists and such: 
$ perl -wle'print defined +() ? 1 : 0'
$ 0

$ perl -wle'$_ = 1; print defined +() ? 1 : 0'
$ 0

$ perl -wle'$_ = 1; print defined () ? 1 : 0'
$ 1

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In reply to An empty list in boolean context? by BUU

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