[lojban-beginners] Re: Questions from the eternal newbie...

["Jorge Llambías" <jjllambias@gmail.com>]

On 6/30/06, Hal Fulton <hal9000@hypermetrics.com> wrote:
> Pardon my high specific gravity, but Lojban just doesn't
> fit into my head easily.
>
> 1. Referring to _What is Lojban?_, p 101:
>
> {le ti bajra tavla}  "the this-one's runner talks"
>
> Are the {ku} and {cu} elidable as shown?? What prevents
> this from being a tanru? In the two prior examples,
> which are similar, the {cu} is not elided.

You are right, the {cu} (or {ku}) is needed there.

> 2. Supposedly (p 102) this is the same as
> {le bajra pe ti tavla}
>
> Hmmm. OK. So what are the ways to say "my cat"? Are
> all these valid?
>
>   {le mlatu pe mi}
>   {le pe mi mlatu}
>   {le mi mlatu}

They are all equivalent, yes.

> 3. Finally, on p 105 we have the implication operators
> "=>" ({na.a}, {naja}, ...)
>
> In parens it says "(if a then b; a only if b)" -- am I
> crazy, or should that be "(...; b only if a)" ?

"a only if b" is correct, i.e. "if not b then not a".

> And is this operator the same as "iff" (if and only if)?

No, that's the double implication, {jo}. The corresponding truth tables are:

A   B    A inaja B   A ijo B
T   T           T            T
T   F           F            F
F   T           T            F
F   F           T            T

mu'o mi'e xorxes