I understand your reasoning, Luke, but if {si si} would cancel out to
the empty string, then there would be no way of erasing multiple
words.
You can compare this to undo functionality in text editors. Emacs
works similarly to how you expected Lojban to work: if you undo
something in Emacs, you can always undo the undoing. In Lojban, you
can't undo undoing and there is no automatic redo.
--
Daniel Brockman
daniel@brockman.se
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