September 23rd, 2018, 09:27 AM  #1 
Newbie Joined: Jun 2018 From: Brasil Posts: 20 Thanks: 0  ring with unity
We say that a set A with two distinct binary operations + and * has ring structure when (A, +) is abelian group and (A, +, *) satisfies certain properties. On the condition necessary and sufficient for (A, +, *) to be a ring with unity, class V for true sentences and F for false sentences: () Have a neutral element in relation to the operation *. () Have a neutral element in relation to the + operation. () Admit closure for both operations in question. () Check the distributive property of multiplication in relation to addition. Check the alternative that presents the sequence CORRECT: a) VFFF. b) VVFF. c) FVFF. d) FFVV. I think the letter c thanks 
September 23rd, 2018, 03:44 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,464 Thanks: 2038 
(e) None of the above.


Tags 
anel, ring, unidade, unit, unity 
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