Just a simple question I want to know how to do, google hasn't been a help.
Show that A + 0 = A
Is it something like, make A a 1 so its 1 + 0 = 1?
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Just a simple question I want to know how to do, google hasn't been a help.
Show that A + 0 = A
Is it something like, make A a 1 so its 1 + 0 = 1?
You need to be more specific now. What is A, 0, +? I presume there is nothing to prove here. It is an assumption we start with. And the above holds by definition of 0.Quote:
Originally Posted by gary223
For all A
A+0=A
Kind of self obvious but to prove like less obvious equalities perhaps the below is helpful
Transpose to A-A=0
Is A a matrix? If so, are you working over arbitrary field, over reals...?Quote:
Originally Posted by gary223
Nevertheless, to verify this for matrices you just have to look at each position, you get equality, which is valid in any field (in particular, in reals).
However, it was just a guest that you mean matrices - you should have specified the context of your question.
Its not a matrix. I'd imagine it has something to do with Boolean algebra?
How aboutQuote:
Originally Posted by gary223
by the absorption property?
You imagine? This is your problem! Where did you get it? What algebraic system are you in?Quote:
Originally Posted by gary223