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

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

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
**Posts:**1628**Joined:**Mon Dec 08, 2008 4:22 pm-
**Contact:**

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!

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.

Please visit : http://mathhelpforum.com/discrete-math/226660-proof-without-use-charactrist-function.html

I writing right there.

thank you.

- stapel_eliz
**Posts:**1628**Joined:**Mon Dec 08, 2008 4:22 pm-
**Contact:**

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 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.