warren<Warren-2>383/Play % gprolog
GNU Prolog 1.3.0
By Daniel Diaz
Copyright (C) 1999-2007 Daniel Diaz
| ?- [assignment2].
compiling /Users/warren/Shared/Dormant/CURRENT/TEACHING/383/09-2_CMPT_383/Play/assignment2.pl for byte code...
/Users/warren/Shared/Dormant/CURRENT/TEACHING/383/09-2_CMPT_383/Play/assignment2.pl compiled, 11 lines read - 3027 bytes written, 28 ms

(1 ms) yes
| ?- rational(X,Y).

X = 1
Y = 2 ? ;

X = 1
Y = 3 ? ;

X = 2
Y = 3 ? ;

X = 1
Y = 4 ? ;

X = 3
Y = 4 ? 

(1 ms) yes
| ?- rational(4,17).

true ? 

(9 ms) yes
| ?- rational(8,34).
^C
Prolog interruption (h for help) ? 
   a  abort        b  break
   c  continue     e  exit
   d  debug        t  trace
  h/? help

Prolog interruption (h for help) ? a
execution aborted
| ?- rational(X,6).

X = 1 ? ;

X = 5 ? ;
^C
Prolog interruption (h for help) ? a
execution aborted
| ?- rational(3,Y).

Y = 4 ? ;

Y = 5 ? ;

Y = 7 ? ;

Y = 8 ? ;

Y = 10 ? 

(3 ms) yes
| ?-