I need some help with dual statements:
1) x*y+(xy+1)= dual x+(y*x)+y * 0= or dual x+(y*x)
2) (x+y)* (0+1) = dual x*y
Are they correct? thank you!
How is xy different from x*y?
Could you explain what "dual F" means for some Boolean formula F? Usually, to obtain a dual formula one replaces * with + and vice versa (plus some other replacements). I don't see the dual of x * y from the left-hand side, which is x + y.
Also, what does = mean here: equality of syntactic expressions or logical equivalence?
Sorry, I did not understand this because the sentence lacks a verb.
Does "same" here mean "are equal character by character" or "have the same truth value for each value of x, y"? Since you say that y*0 is just 0, I think it's the latter...