Proof without use of charactrist function

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Proof without use of charactrist function

Postby reza95 on Fri Mar 07, 2014 3:57 pm

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
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Postby stapel_eliz on Fri Mar 07, 2014 5:58 pm

reza95 wrote: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! :wink:
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Re: Proof without use of charactrist function

Postby reza95 on Fri Mar 07, 2014 6:42 pm

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

Please visit : http://mathhelpforum.com/discrete-math/226660-proof-without-use-charactrist-function.html
I writing right there.
thank you.
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Postby stapel_eliz on Fri Mar 07, 2014 7:16 pm

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!
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Re:

Postby reza95 on Sat Mar 08, 2014 11:05 am

stapel_eliz wrote: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
reza95
 
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Re: Re:

Postby anonmeans on Sat Mar 08, 2014 11:56 pm

reza95 wrote: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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