Logic

Discussion in 'Off Topic [BG]' started by NJL, Jul 21, 2009.

1. NJL

Apr 12, 2002
San Antonio
Prove: ~(R&T)
(p1) ~(P&Q)
(p2) (~P v ~Q) -> (~R v ~T)

Have at it..

Digme, where are you?

2. fdeckSupporting MemberCommercial User

Mar 20, 2004
HPF Technology LLC
I'm good at logic, but have forgotten the standard symbols. Is it like this:

v = OR
& = AND
~ = NOT

3. fdeckSupporting MemberCommercial User

Mar 20, 2004
HPF Technology LLC
On second thought, DeMorgan's Theorem on the two sides of (p2).

Apr 12, 2002
San Antonio
yes

5. NJL

Apr 12, 2002
San Antonio
this class is kicking my butt.. the final won't be comprehensive, just a bunch of these..

logic in general has been life changing, it's great, i even dumped my GF because of it LOL

6. Sterling_Bass

Jul 7, 2005
Central New Jersey
Did you really, NJL?

7. NJL

Apr 12, 2002
San Antonio
haha, yeah, just in spite LOL

now back to logic..

8. fdeckSupporting MemberCommercial User

Mar 20, 2004
HPF Technology LLC
Hint: Look up DeMorgan's Law.

9. geeza

Mar 15, 2009
Earth, but just barely.
I'm not wearing pants
Now I remember why I dropped that class.

10. jokn388

Apr 11, 2007
Prove: ~(R&T)
(p1) ~(P&Q)
(p2) (~P v ~Q) -> (~R v ~T)

~(~PV~Q)V(~RV~T) by defn of conditional
(P&Q)V(~RV~T)
(~RV~T) since (P&Q) is a contradiction of p1
~(R&T)

11. DigMe

Aug 10, 2002
Waco, TX
Trying to teach NJL logic is like trying to teach a chimp to wear pants - everyone laughs but the chimp doesn't get it so much.

bc

12. MakiSupaStarThe Lowdown Diggler

Apr 12, 2006
Huntington Beach, CA
Sigged.

13. bulldogbassist

Jul 21, 2009
Wow. And I'm taking this class next semester!!!

14. T-Bird

Hi.

LOGIC?

Well...

A rabbit is hopping around in the forest with a dilemma, a huge one.
He has just recently heard a new word and is clueless what it means.

Along comes a fox, and seeing that the fox has his stomach full, the rabbit pops the question that has been bugging him for days.

Rabbit: Hey fox my friend, could You explain logic to me please?

Fox: Well, its kinda hard to eplain, but I'll use an example. Do You have matches?

Rabbit: Yes I do.

Fox: Then You must be a smoker, right? That's logic.

Rabbit: Yes I am, but I... umm...well... still don't get it.

Fox: Let's try another one then, do You like booze?

Rabbit: Sure thing I do.

Fox: When You're drinking, you like to go to the dances, right?

Rabbit: Sure I do.

Fox: While drinking and dancing, You like to check out the female rabbits too? Cop a little feel, accidental bumping, that sort of stuff?

Rabbit: Well, yes I do that sometimes (blushing a bit).

Fox: After dancing a bit You like to take one or two fluffy-tails to your place for some after party fun and games.

Rabbit: (blushing quite heavily now) Yes, I guess do that too sometimes, that's the whole point of it, right?

Fox: Yep it is my friend, and at Your pad, you then do what rabbits do, right?

Rabbit: Sure thing I do bro (blushing now up to the tips of his ears).

Fox: That, my furry friend, that's logic.

Rabbit: Thanks a million fox, now I get it.

The rabbit rushes on, anxious to share his new knowledge and all of a sudden the grizzly from next door shows up.

Rabbit: Hey grizzly my friend, how is it hanging?

Rabbit: I just learned a new word, logic, do You know what it means?

Grizzly: No idea. What does it mean?

Rabbit: Well it's kind of hard to explain, but I give You an example: Do You have matches?

Grizzly: Nope.

Rabbit: Well, then You won't get it up either.

Regards
Sam

15. NJL

Apr 12, 2002
San Antonio
oh, i already could solve that one

these are the only rules we are using:

MP
MT
DS
HS
Conj
Simp
Demorgans (DEM)
Double Neg (DN)
ME
Dist

have to go to my next class..

16. NJL

Apr 12, 2002
San Antonio
let me look at that one when i get back so i can present it in a different way

17. NJL

Apr 12, 2002
San Antonio
oh, you wait until i get back, i'm going to give you a problem to solve, [email protected]\$\$!

Apr 12, 2002
San Antonio
Shut it

19. NJL

Apr 12, 2002
San Antonio
will it be via mathematics or phil??

20. NJL

Apr 12, 2002
San Antonio
@sam LOL hahahaha!!!