-1^2 = -1 
1^-2 =  1 
-13*7 = -91 
13*-7 = -91 
-13/7 = -1.857143 
13/-7 = -1.857143 
-13\7 = -1 
13\-7 = -1 
-13 MOD 7 = -6 
13 MOD -7 =  6 
-13+7 = -6 
13+-7 =  6 
-13-7 = -20 
13--7 =  20 
-1=1 =  0 
1=-1 =  0 
-1<>1 = -1 
1<>-1 = -1 
-1>1 =  0 
1>-1 = -1 
-NOT 1 2 
NOT -1 0 
-13 AND 7 =  3 
13 AND -7 =  9 
-13 OR 7 = -9 
13 OR -7 = -3 
-13 XOR 7 = -12 
13 XOR -7 = -12 
-13 EQV 7 =  11 
13 EQV -7 =  11 
-13 IMP 7 =  15 
13 IMP -7 = -5 
NOT 0^2 = -1 
10^NOT 0 =  .1 
NOT 13*7 = -92 
13*NOT 7 = -104 
NOT 13/7 = -3 
13/NOT 7 = -1.625 
NOT 13\7 = -2 
13\NOT 7 = -1 
NOT 13 MOD 7 = -7 
13 MOD NOT 7 =  5 
NOT 13+7 = -21 
13+NOT 7 =  5 
NOT 13-7 = -7 
13-NOT 7 =  21 
NOT 1=1 =  0 
1=NOT 1 =  0 
NOT 1<>1 = -1 
1<>NOT 1 = -1 
NOT 1>1 = -1 
1>NOT 1 = -1 
NOT 13 AND 7 =  2 
13 AND NOT 7 =  8 
NOT 13 OR 7 = -9 
13 OR NOT 7 = -3 
NOT 13 XOR 7 = -11 
13 XOR NOT 7 = -11 
NOT 13 EQV 7 =  10 
13 EQV NOT 7 =  10 
NOT 13 IMP 7 =  15 
13 IMP NOT 7 = -6