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Logic Problem!

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  • #61
    Re: Re: Logic Problem!

    Originally posted by LordShiva


    This poll is invalid
    QFT
    To us, it is the BEAST.

    Comment

    • #62
      SlowwHand is correct.

      edit: wait: I'm in doubt...
      In Soviet Russia, Fake borises YOU.

      Comment

      • #63
        Isn't the statement only proved false if he did have $10 one day and didn't go to KFC?

        i.e. D?

        Comment

        • #64
          Yes, D, actually.
          In Soviet Russia, Fake borises YOU.

          Comment

          • #65
            A very cute employee gave me a free coke at a KFC once. Idiotic as I was, I didn't realise free cokes weren't part of regular service.
            DISCLAIMER: the author of the above written texts does not warrant or assume any legal liability or responsibility for any offence and insult; disrespect, arrogance and related forms of demeaning behaviour; discrimination based on race, gender, age, income class, body mass, living area, political voting-record, football fan-ship and musical preference; insensitivity towards material, emotional or spiritual distress; and attempted emotional or financial black-mailing, skirt-chasing or death-threats perceived by the reader of the said written texts.

            Comment

            • #66
              Originally posted by Oncle Boris
              Yes, D, actually.
              Thank you.
              "The world is too small in Vorarlberg". Austrian ex-vice-chancellor Hubert Gorbach in a letter to Alistar [sic] Darling, looking for a job...
              "Let me break this down for you, fresh from algebra II. A 95% chance to win 5 times means a (95*5) chance to win = 475% chance to win." Wiglaf, Court jester or hayseed, you judge.

              Comment

              • #67
                Re: Logic Problem!

                Originally posted by Gibsie
                Consider the following statement: "Every day this week, if I have $10 in my pocket, then I will eat lunch at KFC."
                If this statement is false, then which of the following statements must be true?

                a. I will never eat lunch at KFC this week.
                b. I will never have $10 in my pocket this week.
                c. There is a day this week when I will have lunch at KFC.
                d. There is a day this week when I will not have lunch at KFC.
                e. None of the above

                Reasons for conclusions, please

                Edited cos SlowwHand is too smart!
                Let:

                P = I will have $10 in my pocket this week
                Q = I will eat lunch at KFC.

                You've told us that "if P then Q" is false,

                => not (if P then Q)

                => not ((not P) or Q)

                => not (not P) and not (Q)

                => P and not Q

                d (= not Q) must be true.
                Last edited by LordShiva; March 4, 2007, 16:35.
                THEY!!111 OMG WTF LOL LET DA NOMADS AND TEH S3D3NTARY PEOPLA BOTH MAEK BITER AXP3REINCES
                AND TEH GRAAT SINS OF THERE [DOCTRINAL] INOVATIONS BQU3ATH3D SMAL
                AND!!1!11!!! LOL JUST IN CAES A DISPUTANT CALS U 2 DISPUT3 ABOUT THEYRE CLAMES
                DO NOT THAN DISPUT3 ON THEM 3XCAPT BY WAY OF AN 3XTARNAL DISPUTA!!!!11!! WTF

                Comment

                • #68
                  It's been a long time since I last did that, but here's the solution IIRC. BTW, those problems are really easy when you formalize them - the hard part is to disregard real-world common sense.

                  P: Everyday this week I have $10 in my pocket
                  Q: I eat lunch at KFC [everyday this week]
                  (I think it's the most reasonable way to interpret the proposition.)

                  P then Q = F
                  P ^ ¬Q
                  Q is disproven by D

                  edit: to phrase it more properly, D is the only necessary and sufficient condition for ¬Q
                  Last edited by Fake Boris; March 4, 2007, 16:23.
                  In Soviet Russia, Fake borises YOU.

                  Comment

                  • #69
                    I don't agree with you LS, I think the 'every day this week' should apply to both propositions...
                    In Soviet Russia, Fake borises YOU.

                    Comment

                    • #70
                      Yeah, you're right.
                      THEY!!111 OMG WTF LOL LET DA NOMADS AND TEH S3D3NTARY PEOPLA BOTH MAEK BITER AXP3REINCES
                      AND TEH GRAAT SINS OF THERE [DOCTRINAL] INOVATIONS BQU3ATH3D SMAL
                      AND!!1!11!!! LOL JUST IN CAES A DISPUTANT CALS U 2 DISPUT3 ABOUT THEYRE CLAMES
                      DO NOT THAN DISPUT3 ON THEM 3XCAPT BY WAY OF AN 3XTARNAL DISPUTA!!!!11!! WTF

                      Comment

                      • #71
                        Originally posted by Joe Kick Ass
                        Isn't the statement only proved false if he did have $10 one day and didn't go to KFC?

                        i.e. D?
                        Man, you lack subtlety.
                        In Soviet Russia, Fake borises YOU.

                        Comment

                        • #72
                          Originally posted by Provost Harrison
                          It's a sh*t question admittedly, pretty ambiguous.
                          No, it wasn't.

                          My ranking of you was obviously justified.
                          12-17-10 Mohamed Bouazizi NEVER FORGET
                          Stadtluft Macht Frei
                          Killing it is the new killing it
                          Ultima Ratio Regum

                          Comment

                          • #73
                            Anybody to whom the answer to this was not immediately obvious is an idiot.
                            12-17-10 Mohamed Bouazizi NEVER FORGET
                            Stadtluft Macht Frei
                            Killing it is the new killing it
                            Ultima Ratio Regum

                            Comment

                            • #74
                              Originally posted by KrazyHorse


                              No, it wasn't.

                              My ranking of you was obviously justified.
                              What I want to know is, who the f**k do you think you are?
                              Speaking of Erith:

                              "It's not twinned with anywhere, but it does have a suicide pact with Dagenham" - Linda Smith

                              Comment

                              • #75
                                Yeah, who the **** is this guy anyway?
                                DISCLAIMER: the author of the above written texts does not warrant or assume any legal liability or responsibility for any offence and insult; disrespect, arrogance and related forms of demeaning behaviour; discrimination based on race, gender, age, income class, body mass, living area, political voting-record, football fan-ship and musical preference; insensitivity towards material, emotional or spiritual distress; and attempted emotional or financial black-mailing, skirt-chasing or death-threats perceived by the reader of the said written texts.

                                Comment

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