Text Formatting ⇒ \hfill doesn't work in tabbing environment

[clementian]

Hi, all,

Here is my question.
When I use \hfill in the tabbing environment, it doesn't seem to play
the role expected. In what way we can achieve the effect of \hfill in
a tabbing env? thank you.

My original problem is I want a layout as below:

Proof
--Assume A \subseteq B
----For all x \in A
------x \in C ..............................(1) %right aligned
------...
------x \in CEDF ............................(2) %right aligned
------Therefore, by (1) and (2),
----x \in C \cap CEDF .......................(3) %right aligned
----Therefore,
--A \subseteq C \cap CEDF

(Ignore --- in the begining of each line. they should be taken
as spaces. I didn't use spaces because the system automatically dels them)
I use tabbing env to implement the "tabbing" inside the proof. However,
inside tabbing env, \dotfill (or \hfill) doesn't work as expected.

Again, appreciate you answer to this question.

Clementian

[frabjous]

In the tabbing environment, you can use \` to right align stuff up to the next tab stop (or end of line, if there are no more):

E.g.:

Code: Select all

\documentclass{article}
\begin{document}
Proof:
\begin{tabbing}
XXX\=XXX\=XXX\=\kill\\
\>Assume $A \subseteq B$\\
\>\>For all $x \in A$\\
\>\>\>$x \in C$ \`(1) \\
\>\>\>\ldots\\
\>\>\>$x \in CEDF$ \`(2)\\
\>\>\>Therefore, by (1) and (2),\\
\>\>$x \in C \cap CEDF$ \`(3)\\ %right aligned
\>\>Therefore,\\
\>\>$A \subseteq C \cap CEDF$\\
\end{tabbing}
\end{document}

But, in all honestly, you'd probably be better off finding some kind of proof environment, e.g., one that automatically tags your lines, from the AMS math packages or similar.

[clementian]

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