(LC Builder 'contains' vs 'is in') ================================= Ali, are the following TRUE statements?
1. Every list "contains" the empty list. 2. [x] "contains" [x, x]. 3. nothing "is in" the empty list. > (Corrected in line 5 contains to "contains"): > TMHO this abstract writing of Ali's examples is easy to remember, > the different "level" of the comparison is visible by the brackets. > > x "is in" A if and only if A "contains" [x]. > (x "is in" A and y "is in" A) if and only if A "contains" [x,y]. > etc. > where A is a list, x,y is any. > > > >> Definitions. Let A and B be lists. > >> x "is in" A if and only if x is an element of A. > >> B "contains" A if and only if every element of A "is in" B. _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
