Understand that "if A or B" is short for the phrase "if either A or B is true", or more fully "if A is true or B is true". When I add "is true" then the logic seems obvious to me without memorizing anything.
Likewise, "if A and B" means "if A and B are both true", which is the same as "if A is true and B is true". On Fri, Jul 31, 2009 at 12:09 PM, Alan Gauld<alan.ga...@btinternet.com> wrote: > > "Eduardo Vieira" <eduardo.su...@gmail.com> wrote > >> Hello, would anybody have a good memorization technique for boolean >> results? Like when using 'or'/'and' what it returns when both are >> false, the last is false, etc? > > Hmm, I don't try to remember those, I just work it out based on the meaning. > A and B is true only if both A and B are True > A or B is true if either A or B is True. > > Thats it really, what's to remember? > > I guess for a non native English speaker it might be more difficult because > you need to translate and/or into the native language? > But I assume every language has an equivalent for both of those concepts? > > In hardware engineering its more complex because you have nand and nor gates > to deal with too, but they don't apply in software - at least not directly. > > > -- > Alan Gauld > Author of the Learn to Program web site > http://www.alan-g.me.uk/ > > _______________________________________________ > Tutor maillist - tu...@python.org > http://mail.python.org/mailman/listinfo/tutor > -- Robert Lummis _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
