[lojban] {x1 x2 = x2 co x1}?

[Opi Lauma <lojban-out@lojban.org>]

coi

I would like to ask new question. Is it right that
{selbri1 selbri2} = {selbri2 co selbri1}? For example
it should be right if selbri1 = {cmalu} and selbri2 =
{ckule}. {cmalu ckule} = {ckule co cmalu}, isn't?
However, I am not sure that {nanla ckule} = {ckule co
nanla}.

I have supposition, that if we divide selbri by
classes which will satisfy different rules of
transformation we will get classes which will
correspond to substantive, verbs and adjective. For
example {cmalu} and {nanla} should belong to different
classes because the first of them sutisfy {x1 x2 = x2
co x1} and the second one does not. So, may be lojban
also has different part of speech (however not
explicitly). May be this parts come not from grammar
but from meaning?

mu'o mi'e .opilaumas


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