/media/sda-magnetic/david/Dokumente-15/fernuni-hagen/cs-i-ii/schaltnetz01.txt

 0 0 0 0 0    1
 1 0 0 0 1    1
 2 0 0 1 0    1
 3 0 0 1 1    0
 4 0 1 0 0    0
 5 0 1 0 1    0
 6 0 1 1 0    1
 7 0 1 1 1    1
 8 1 0 0 0    0
 9 1 0 0 1    0
10 1 0 1 0    0
11 1 0 1 1    1
12 1 1 0 0    1
13 1 1 0 1    0
14 1 1 1 0    0
15 1 1 1 1    1

   a b c d    x
 0 0 0 0 0    1
 1 0 0 0 1    1
 2 0 0 1 0    1
 3 0 0 1 1    0
 4 0 1 0 0    0
 5 0 1 0 1    0
 6 0 1 1 0    1
 7 0 1 1 1    1
 8 1 0 0 0    0
 9 1 0 0 1    0
10 1 0 1 0    0
11 1 0 1 1    1
12 1 1 0 0    1
13 1 1 0 1    0
14 1 1 1 0    0
15 1 1 1 1    1

   a b c d    x
 0 0 0 0 0    1
 1 0 0 0 1    1
 2 0 0 1 0    1
 6 0 1 1 0    1
 7 0 1 1 1    1
11 1 0 1 1    1
12 1 1 0 0    1
15 1 1 1 1    1


   a b c d    x
Gruppe 0:
 0 0 0 0 0    1
Gruppe 1:
 1 0 0 0 1    1
 2 0 0 1 0    1
Gruppe 2:
 6 0 1 1 0    1
12 1 1 0 0    1
Gruppe 3:
 7 0 1 1 1    1
11 1 0 1 1    1
Gruppe 4:
15 1 1 1 1    1

0-1     0 0 0 -
0-2     0 0 - 0
2-6     0 - 1 0
6-7     0 1 1 -
12      1 1 0 0 
7-15    - 1 1 1
11-15   1 - 1 1 

0-1     0 0 0 -
6-7     0 1 1 -
0-2     0 0 - 0
2-6     0 - 1 0
11-15   1 - 1 1 
7-15    - 1 1 1
12      1 1 0 0 

y := (NOT a AND NOT b AND NOT c) OR (NOT a AND b AND c) OR (NOT a AND NOT b AND NOT d) OR (NOT a AND c AND NOT d) OR (a AND c AND d) OR (b AND c AND d) OR (a AND b AND NOT c AND NOT d)