DIM = 2



CONE_SECTION
( 1) 1 1 
( 2) 0 1 

COMMENT

This is an input file for PORTA.  (PORTA reads only the part before 
"COMMENT".)  Above are the sparse f-vectors of some half-Eulerian limit 
posets.  When the PORTA command "traf -v" is run on this file, it 
produces the output below: the list of inequalities and the strong 
validity table.

_________________________________________________________________________

DIM = 2

VALID
0 0 

INEQUALITIES_SECTION
(  1) -x1    <= 0    
(  2) +x1-x2 <= 0    

strong validity table : 
\ P      |    |
 \ O     |    |
I \ I    |    |
 N \ N   | 1  | #
  E \ T  |    |
   Q \ S |    |
    S \  |    |
       \ |    |
------------------
1        | .* :  1
2        | *. :  1
          ........
#        | 11

END