I have a question about the C because the implication is that it is false if the truth is clear fal

I have a problem with the task of showing the following sentences are tautologami asked me about making and an explanation so I can analyze and understand. I know it's done these tabelkami but until yesterday had it on the lecture and not too I can apply; /
hm I do not know if it could be so good? ps how this table paste here? I have a question about the C because the implication is that it is false if the truth is clear falsehood. So we look first at and then it "equate" the name for it so wrong? timisoara Top mmoonniiaa
I have a question about the C because the implication is that it is false if the truth is clear falsehood. So we look first at pqi then it "equate" with such a name to p so? It is exactly as you described: timisoara stick to the order we have in the sentence. Top maillo93
Buckles [tex] [/ tex] applied timisoara on the entire expression: [tex] e) \; \ Neg (p \ vee q) \ Leftrightarrow \ neg p \ wedge \ neg q [/ tex] In the fourth column ran in the header bracket. it's quite something different from this:. I did not do at all last column, which should include the whole sentence, timisoara which proves that it is a tautology. Top Althorion
yes I know it still crosses timisoara the latter because I did this time already give in the table lest it was - October 4, 2012, at 19:34 - can not comprehend what I am doing wrong this table does not want to go out with - October 4, 2012, by 19 51 - good kit that I think of it already got it what it is! Thanks for the great moonniii Top
See related topics Topic Title Replies Logic (tautology) - check the task Hello Well I'll be grateful for the check that came to me a good answer Is j ... Novero 4 Tautology of the unknown in place of the \ nabla insert Change propositional p, q or r, so that the resulting complex sentence was a tautology) p \ Right ... lukasz1415 1 issue propositional function f is neutral task force said in a book of logic, and I know from my own body of knowledge, referred to as the task is to present a geometrical interpretation of the false and true f propositional, timisoara and to be honest at first glance it sounds ... lightinside 3 What is a tautology? Is it me bad looking, or tautology & # 40; p \ rightarrow q & # 41; \ Iff \ neg & # 40, P \ wedge \ neg q & # 41; actually no name? ... Jerzy_q 2 Verify that the formula is a tautology - task 2 Check if the following formula is a tautology: \ left \ Leftrightarrow \ left [\ neg \ left & # 40; p \ Right ... misiek191992 5 check for tautology Check the shortcut method, the given formulas are tautologies of the propositional calculus. [& # 40; p ... robin5hood 3 Check whether the given expression timisoara is a tautology. Analysis of the tasks I do not understand why you can not scan a job, but about the law is the law ... Raamboo 12 or zdaniejest tautology? Is this sentence is a tautology? \ Left \ rightarrow \ left & # 40; p \ rightarrow y \ right & # 41; If you split it ... a minimum of 6 Hi inference problem. I have to do a few tasks in discrete mathematics. With the majority already timisoara did it, but I still have two quite difficult, sub. Can I ask someone timisoara to show me how to do them, explanation? Thank you very much in advance. Quantic ... 0 Investigate whether the sentence is a tautology Investigate whether the following statements are tautologies: & # 40; & # 40; p \ rightarrow q & # 41; \ Rightarrow r & # 41; \ Rightarrow & # 40; p \ rightarrow & # 40; q \ rightarrow r & # 41; & # 41; & # 40, & # 40; p \ rightarrow q & # 41; \ Rightarrow r & # 41 ... izaizaiza 7 or schema is a tautology Hi, Please help. I checked the shortcut method or schema \ rightarrow p is a tautology? Thank you in advance for your help. Unfortunately, I can not comprehend .... kuba435 4 when the expression is a tautology - improved version of the data is the expression p_1 \ Leftrightarrow & # 40; p_2 \ Leftrightarrow ... \ Leftrightarrow & # 40; P_N \ Leftrightarrow & # 40; Q_1 \ not \ Leftrightarrow timisoara & # 40; q_2 \ not \ Leftrightarrow ... \ not \ Leftrightarrow & # 40; Q_ {m-1} \ not \ Leftrightarrow q_m & # 41; & # 41 ... duuj 9 Check if the sentence is a tautology timisoara . Oh, and if I give an example that goes contradiction this sentence is a tautology and if equality comes out it is not so? Or otherwise interested in me the way to solve without the table ... because the more complex sentences, the table is ... nowik1991 3 tautology of classical logic quantifiers Hello. I got to wykanania task which, unfortunately, is beyond timisoara me. I look forward to help :) Do the following formula is a tautology of classical logic kwantyfikatorów.Jesli is also possible please justify. 1 \ forall x & # 40; Px \ wedge ... darla22 5 Tautology - proof not wp