fib (0,0). fib (1,1). fib (N,X) :- fib (N - 1, X) + fib (N - 2, X)
Standard input is empty
prog.pl:1:5: syntax error: . or operator expected after expression prog.pl:2:5: syntax error: . or operator expected after expression prog.pl:3:5: syntax error: . or operator expected after expression 3 error(s) compilation failed
Standard output is empty