%query: ackermann(i,i,o). %% ackerman(A,B,C) :- C=ack(A,B) %% %TWTYPES :- type ackermann(nat,nat,nat). ackermann(0,N,s(N)). ackermann(s(M),0,Res) :- ackermann(M,s(0),Res). ackermann(s(M),s(N),Res) :- ackermann(s(M),N,Res1), ackermann(M,Res1,Res). /*TWDESC ackerman(A,B,C) :- C=ack(A,B) */ /*TWTYPES nat(0). nat(s(X)) :- nat(X). */ /*TWDEMO selected_norms([nat]). query(ackermann(b,b,f)). */
content may be truncated. 'popout' for larger text window.
