#FIG 3.2  Produced by xfig version 3.2.5
Landscape
Center
Inches
Letter  
100.00
Single
-2
1200 2
6 1500 1200 2100 1500
1 3 0 1 0 7 50 -1 -1 0.000 1 0.0000 1800 1350 150 150 1800 1350 1950 1350
4 1 0 50 -1 0 11 0.0000 2 195 465 1800 1425 T$_2$\001
-6
6 1050 1200 1650 1500
1 3 0 1 0 7 50 -1 -1 0.000 1 0.0000 1350 1350 150 150 1350 1350 1500 1350
4 1 0 50 -1 0 11 0.0000 2 195 465 1350 1425 T$_1$\001
-6
6 1950 1200 2550 1500
1 3 0 1 0 7 50 -1 -1 0.000 1 0.0000 2250 1350 150 150 2250 1350 2400 1350
4 1 0 50 -1 0 11 0.0000 2 195 465 2250 1425 T$_3$\001
-6
2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 1 2
	0 0 1.00 45.00 90.00
	0 0 1.00 45.00 90.00
	 1350 1500 1725 1800
2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 1 2
	0 0 1.00 45.00 90.00
	0 0 1.00 45.00 90.00
	 2250 1500 1875 1800
2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
	 1650 1800 1950 1800 1950 2100 1650 2100 1650 1800
2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 1 2
	0 0 1.00 45.00 90.00
	0 0 1.00 45.00 90.00
	 1800 1500 1800 1800
4 1 0 50 -1 0 11 0.0000 2 195 495 1800 2025 H$_1$\001
4 1 0 50 -1 0 11 0.0000 2 195 1320 2100 2025 $\\Leftrightarrow$\001
4 0 0 50 -1 0 11 0.0000 2 135 240 2250 2025 OS\001