Alexander Burger wrote: (...)
'or' takes not singular expressions, but whole clause bodies in each argument, to allow the implicit 'and' of Prolog. Thus, an additional level of parentheses is required. A working version would be: (be bT (@N) (or ((t1 @N)) ((t2 @N))) )
Helpful as ever! Thank you. With that explanation I eventually got also my 'assertz' got right! Previously it did not assert my desired clause. But you explanation above let me realize, that there too, a extra pair of parentheses were lacking ... :-)
Cheers, - Alex
Ciao, Cle. -- UNSUBSCRIBE: mailto:[email protected]?subject=unsubscribe
