This is TeX, C Version 3.0 (format=lplain 90.11.25)  14 SEP 1993 09:29
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! Undefined control sequence.
l.67 $r_1 < x_i \eq
                    r_2$, $r_1 \leq x_i < r_2$, or $r_1 < x_i < r_2$
? i \leq

Overfull \hbox (15.20601pt too wide) in paragraph at lines 61--69
[]\twlrm Consider an in-stance space where each in-stance is an ob-ject with $\
twlmi n$ \twlrm at-tributes $\twlmi x[]; x[]; [] x[]$

\hbox(8.33331+2.33331)x433.62, glue set - 1.0
.\hbox(0.0+0.0)x0.0
.\twlrm C
.\twlrm o
.\twlrm n
.\twlrm s
.etc.

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Output written on ps1.dvi (3 pages, 7188 bytes).