## Proof without use of charactrist function

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reza95
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### Proof without use of charactrist function

Proof without use of charactrist function that:
a) A Subscription B is the largest set containing both A and B
b) A Ú B is the smallest set containing both A and B

please help me.
thank you

stapel_eliz
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Proof without use of charactrist function that:
a) A Subscription B is the largest set containing both A and B
b) A Ú B is the smallest set containing both A and B
Does "charactrist" mean "characteristic"? What does "Subscription" mean in this context? Does "Ú" mean "U" (or "union")?

What have you tried? Where are you stuck? Please be complete. Thank you!

reza95
Posts: 5
Joined: Fri Mar 07, 2014 3:46 pm
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### Re: Proof without use of charactrist function

I am so sorry , when I want right I get Error and can not submit my post.

Please visit : http://mathhelpforum.com/discrete-math/ ... ction.html
I writing right there.
thank you.

stapel_eliz
Posts: 1628
Joined: Mon Dec 08, 2008 4:22 pm
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So "subscription" means "intersect". But:

Does "charactrist" mean "characteristic"? Does "Ú" mean "U" (or "union")?

What have you tried? How far have you gotten? Where are you stuck? Please be complete. Thank you!

reza95
Posts: 5
Joined: Fri Mar 07, 2014 3:46 pm
Contact:

### Re:

So "subscription" means "intersect". But:

Does "charactrist" mean "characteristic"? Does "Ú" mean "U" (or "union")?

What have you tried? How far have you gotten? Where are you stuck? Please be complete. Thank you!

"subscription" means "intersect"
"charactrist" mean "characteristic"
"Ú" mean "U" (or "union")

sorry ,my bad.
thank you

anonmeans
Posts: 84
Joined: Sat Jan 24, 2009 7:18 pm
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### Re: Re:

Proof without use of charactrist function that:
a) A Subscription B is the largest set containing both A and B
b) A Ú B is the smallest set containing both A and B

"subscription" means "intersect"
"charactrist" mean "characteristic"
"Ú" mean "U" (or "union")
Like they told you at the other site, both of these are wrong. YOu can't prove them.

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