# Thread: Computing in Universe of Discourse

1. ## Computing in Universe of Discourse

Let E = {a,b,c,d,e,f} be a universe of discourse. Let A = {a}, B = {b, c, d}, C = {f,a,d}. Compute the following:

I'd like to know if these answers are correct. Thanks in advance

A (union) B = {a,b,c,d}

B (intersection) C = {d}

B^c = {a,e,f}

A (triangle) C = {f,d}

C\A {f,d}

2. ## Re: Computing in Universe of Discourse

Originally Posted by maclunian
Let E = {a,b,c,d,e,f} be a universe of discourse. Let A = {a}, B = {b, c, d}, C = {f,a,d}. Compute the following:
I'd like to know if these answers are correct.
You can learn to use LaTeX.
[TEX]A\cup B = \{a,b,c,d\}[/TEX]

[TEX]B \cap C = \{d\}[/TEX]

[TEX]B^c = \{a,e,f\}[/TEX]

[TEX]A \Delta C = \{f,d\}[/TEX]

[TEX]C\setminus A= \{f,d\}[/TEX]

GIVES
$\displaystyle A\cup B = \{a,b,c,d\}$

$\displaystyle B \cap C = \{d\}$

$\displaystyle B^c = \{a,e,f\}$

$\displaystyle A \Delta C = \{f,d\}$

$\displaystyle C\setminus A= \{f,d\}$

They are correct.