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11-28-2005, 03:29 PM
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#1 |
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Adult Content Provider
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Join Date: May 2005
Location: Europe
Posts: 18,243
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Math: Formal proof
Ive beem beating my head against the wall trying to make a formal proof for this problem
(p v q) -> r (q v r) -> (~s v t) p ^ s .: t I havent been able to find any good help online and im just not getting anywhere so if anyone good at logic can help me id appreciate it. |
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11-28-2005, 03:36 PM
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#2 |
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Chafed.
Join Date: May 2002
Location: Face Down in Pussy
Posts: 18,041
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College Homework Surfer. QED.
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11-28-2005, 03:36 PM
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#3 |
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BACON BACON BACON
Industry Role:
Join Date: Nov 2002
Location: Poems everybody, the laddie fancies himself a poet
Posts: 35,462
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ask dr.math
all logic proofs have already been proved...this shouldnt be a hard one...but not something ill spend twenty minutes on...im going home to play video games instead |
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11-28-2005, 03:37 PM
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#4 |
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Confirmed User
Join Date: Nov 2005
Posts: 770
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i hate math
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11-28-2005, 03:39 PM
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#5 | |
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Adult Content Provider
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Quote:
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11-28-2005, 06:08 PM
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#6 |
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Confirmed User
Join Date: Nov 2005
Posts: 222
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math makes me sick.
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11-28-2005, 06:21 PM
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#7 |
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Reach for those stars!
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Join Date: Apr 2003
Location: Vancouver, BC
Posts: 17,991
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Good luck.
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email: [email protected] |
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11-28-2005, 06:33 PM
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#8 |
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Registered User
Join Date: Feb 2004
Location: In Your Dreams
Posts: 9,649
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---'-,-{@ Sassy Grrrl @}-'-,--- 
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11-28-2005, 10:12 PM
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#9 |
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Too lazy to set a custom title
Join Date: Jul 2005
Posts: 11,922
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I don,'t think I encountered that on my college algebra.
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 Make money on any traffic. Bi-weekly payments with no hold. |
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11-28-2005, 11:43 PM
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#10 | |
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Confirmed User
Join Date: Aug 2005
Location: So Cal
Posts: 2,972
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Quote:
where are the numbers?
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Dedicated and colo hosting: ICQ 291313057 "A problem cannot be solved from the same consciousness that created it. We must learn to see the world anew." - Albert Einstein |
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11-28-2005, 11:43 PM
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#11 |
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lurker
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Join Date: Aug 2002
Location: atlanta
Posts: 57,021
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awwwwwww math
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11-28-2005, 11:59 PM
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#12 |
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Confirmed User
Join Date: Nov 2005
Posts: 367
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sorry dude, I can't help you with that equation.
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11-29-2005, 12:01 AM
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#13 |
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salad tossing sig guy
Join Date: Apr 2002
Location: mrthumbs*gmail.com
Posts: 11,702
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(p v q) -> r equals (~s v t)[p ^ s]3
.: this is just a formula terminator so not relevant |
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11-29-2005, 12:26 AM
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#14 | |
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Boomer Woffen
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Location: Null
Posts: 30,579
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Quote:
Thats actually logic.. lets see if we can do it together.. p or q if then r on line 1. but i believe it becomes an and because its in bracktes, so p&q if then r for line 1 q or r if then it is not the case the s is x or t p and s therefore t. shit man,, i forget which rule it is but you need to flip the first one around and change the cotraction to a conjunction to get the T by itself, then flip the entire second line but change the negative quantifier. then deduce and you should get your conclusion. hope this helps duke
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11-29-2005, 12:28 AM
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#15 |
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Confirmed User
Join Date: Nov 2005
Posts: 2,169
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It's a "i hate math world."
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11-29-2005, 04:13 AM
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#16 |
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Confirmed User
Join Date: Nov 2005
Posts: 646
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Any math wizard on this board?
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11-29-2005, 04:26 AM
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#17 | |
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Confirmed User
Join Date: Aug 2003
Location: Portland, Oregon
Posts: 4,541
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Quote:
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11-29-2005, 05:07 AM
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#18 |
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So Fucking Banned
Join Date: Oct 2003
Location: icq: 121189
Posts: 18,889
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the answer is 4.
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11-29-2005, 05:08 AM
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#19 |
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Adult Content Provider
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Lets see here
1. p v s 1. premise 2. p 2. simplifciation (1) 3. s 3. simplifciation (1) 4. (p v q) 4. premise 5. ~(p v q) -> r 5..Contiditional equivalence (4) 6 ~p v (q v r) 6 Associated equivalence (5) 7. q v r 7. Disjunctive syllogism (2,6) 8. (q v r) -> (~s v t) 8. Premise 9. ~s v t 9. Modus Pones (7) 10. T 10. Disjunctive syllogism (3,9) |
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11-29-2005, 10:27 AM
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#20 |
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Confirmed User
Join Date: Aug 2005
Posts: 6,996
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hehe! almost everyone here hates math! same with me...doesn't liked it all!
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11-29-2005, 11:42 AM
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#21 |
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Confirmed User
Join Date: Mar 2004
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Posts: 4,569
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I dont know what to say here so : Suck my balls will have to suffice
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