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Forum: Discrete Mathematics, Set Theory, and Logic

Discrete Math, Graph Theory, Combinatorics, Recurrence Relations (Difference Equations), Set Theory, General and Symbolic Logic

  1. Sticky Thread Sticky Threads

  2. Sticky Thread Difference equation tutorial: draft of part II

    Started by chisigma, April 15th, 2012 12:32
    • Replies: 2
    • Views: 3,389
    March 2nd, 2013, 05:47 Go to last post
  3. Sticky Thread Difference equation tutorial: draft of part I

    Started by chisigma, March 2nd, 2012 12:37
    • Replies: 3
    • Views: 3,670
    March 6th, 2012, 03:02 Go to last post
  4. Sticky Thread Please Read Before Posting Logic Questions

    Started by Ackbach, January 27th, 2012 23:00
    • Replies: 0
    • Views: 1,824
    January 27th, 2012, 23:00 Go to last post
  1. Normal Thread Normal Threads

  2. [SOLVED] Analyzing a Difference Equation

    Started by Theia, July 19th, 2016 12:24
    case, difference, equation, serie, solution
    • Replies: 5
    • Views: 725
    December 23rd, 2016, 16:15 Go to last post
    • Replies: 3
    • Views: 417
    December 21st, 2016, 18:22 Go to last post
  3. Cardinality: Is the last sum correct?

    Started by mathmari, December 20th, 2016 06:30
    $p_n$, correct, ldots, set, sum
    • Replies: 0
    • Views: 265
    December 20th, 2016, 06:30 Go to last post
    • Replies: 2
    • Views: 525
    December 17th, 2016, 12:36 Go to last post
  4. Question regarding pigeonhole method , number induction

    Started by ffdude, October 30th, 2016 04:11
    • Replies: 2
    • Views: 414
    December 14th, 2016, 11:16 Go to last post
  5. Why is f being an injection equivalent to this ?

    Started by fatineouahbi, December 13th, 2016 12:54
    fa⋂b, injection, question, solve, supposition
    • Replies: 1
    • Views: 323
    December 14th, 2016, 09:57 Go to last post
  6. Composite applications

    Started by fatineouahbi, December 13th, 2016 14:37
    applications, composites, injection, surjection
    • Replies: 2
    • Views: 406
    December 13th, 2016, 21:32 Go to last post
  7. A problem in set theory

    Started by Ella, December 10th, 2016 21:12
    pn∖n, proper, question, set, subset
    • Replies: 1
    • Views: 327
    December 11th, 2016, 06:04 Go to last post
  8. How to solve this problem?

    Started by johndunlop, December 8th, 2016 10:43
    daim, lila, month, philo, viknesh
    • Replies: 1
    • Views: 401
    December 9th, 2016, 00:12 Go to last post
  9. How can we apply the functions?

    Started by mathmari, December 6th, 2016 21:48
    • Replies: 2
    • Views: 304
    December 7th, 2016, 13:04 Go to last post
  10. A Surjective function from [0,1]\{1/2} to [0,1]

    Started by Ella, December 5th, 2016 08:50
    1]1/2, function, question, surjective, [0,1]
    • Replies: 1
    • Views: 273
    December 5th, 2016, 12:07 Go to last post
  11. How to find the dfa

    Started by evinda, August 7th, 2016 16:41
    5 Pages
    1 2 3 ... 5
    • Replies: 43
    • Views: 2,652
    November 29th, 2016, 12:58 Go to last post
  12. Prim's algorithm for minimal spanning tree

    Started by LearnerJr, November 20th, 2016 20:46
    • Replies: 2
    • Views: 306
    November 20th, 2016, 21:16 Go to last post
  13. Diophantine Equation

    Started by Jkawa, November 13th, 2016 19:30
    $m$, $n$, 105$, find, integers
    • Replies: 7
    • Views: 645
    November 14th, 2016, 01:50 Go to last post
  14. Is it the algorithm the optimal one?

    Started by evinda, November 1st, 2016 13:17
    3 Pages
    1 2 3
    algorithm, char, chosen, number, optimal
    • Replies: 20
    • Views: 1,507
    November 7th, 2016, 13:41 Go to last post
    • Replies: 4
    • Views: 575
    November 5th, 2016, 18:20 Go to last post
  15. Show that the game ends

    Started by evinda, October 29th, 2016 18:30
    3 Pages
    1 2 3
    ball, balls, game, marked, throw
    • Replies: 25
    • Views: 1,542
    November 5th, 2016, 15:50 Go to last post
    • Replies: 1
    • Views: 284
    October 31st, 2016, 15:52 Go to last post
  16. Is Cantor's second diagonal proof valid?

    Started by Phar2wild, October 11th, 2016 18:58
    cantors, list, number, proof, scenario
    • Replies: 6
    • Views: 720
    October 30th, 2016, 09:32 Go to last post
  17. Addition of binary numbers

    Started by evinda, July 21st, 2016 12:53
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,472
    October 29th, 2016, 08:26 Go to last post
  18. Proof of sets

    Started by Mathick, October 19th, 2016 14:41
    $pz, cap, cup, sets, true
    • Replies: 1
    • Views: 358
    October 20th, 2016, 13:50 Go to last post
  19. Formal proof using the deduction theorem

    Started by Yankel, October 8th, 2016 06:24
    • Replies: 0
    • Views: 425
    October 8th, 2016, 06:24 Go to last post
  20. Rules of Inference

    Started by Yankel, October 3rd, 2016 11:11
    • Replies: 2
    • Views: 375
    October 3rd, 2016, 15:54 Go to last post
  21. CNF Form

    Started by Yankel, September 28th, 2016 11:07
    advance, cnf, form, rules, unsuccessfully
    • Replies: 3
    • Views: 529
    September 29th, 2016, 16:38 Go to last post
  22. prove relationship between sets

    Started by biocamme, September 21st, 2016 20:38
    a∩b^c=a^c∪b^c, a∪b^c=a^c∩b^c, prove, sets, relationship
    • Replies: 4
    • Views: 590
    September 27th, 2016, 19:40 Go to last post
  23. Logical Implication

    Started by Yankel, September 24th, 2016 05:36
    beta, left, models, rightarrow, [alpha
    • Replies: 5
    • Views: 644
    September 27th, 2016, 15:32 Go to last post
  24. predicate calculus

    Started by solakis, September 19th, 2016 11:15
    calculus, paradox, predicate, russells, shave
    • Replies: 7
    • Views: 708
    September 23rd, 2016, 13:47 Go to last post

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Top 231 Thread Starters For "Discrete Mathematics, Set Theory, and Logic"

RankUser NamePercentage Of TotalThreadsMost Recent Thread
1evinda22.3184All boolean functions are comp...
2mathmari7.562Statements about the preimages
3solakis3.529predicate calculus
4Yankel1.916Combinatorics - The pigeonhole...
4Peter1.916Nonreflexive Relation ...
4Joystar19771.916Please help me with this quest...
5yakin1.714Drawing and finding the value ...
6find_the_fun1.613How to derive a recurrence rel...
7shamieh1.512Finding Time Complexities...
7KOO1.512Prove that if p and q are posi...
8jacks1.311Number of quadrilatera in poly...
9Alexmahone1.210In how many ways can a cube wi...
10Mathelogician1.19Question on 'Henkin theory'
10Andrei1.19substructures of the n-clique
10Aryth1.19k-extendable Problem
11caffeinemachine1.08A Rectangle Covered by 25 Disc...
11skatenerd1.08standard logical statements, n...
11tmt1.08Permutations or Combination?
12Yuuki0.87Using isomorphism and permutat...
12barbara0.87An Algorithm
12JProgrammer0.87Pigeon Hole Theory
13issacnewton0.76check if relation is equivalen...
13andrew0.76Binary Relations
14hossam killua0.65math logic
15Bingk0.54Terminology on graph theory
15dwsmith0.54(A - B)\cup B = A
15chisigma0.54Two interesting problems...
15ZaidAlyafey0.54solve f(n) = 2f (sqrt(n))+n
15sadsadsadsa0.54Adjacency Matrix Problem and A...
15WannaBe0.54Venn Diagram
15Pranav0.54Recurrence relation problem
15Kristen0.54Digraph of a Binary Positional...
15JaAnTr0.54Help understanding a puzzle.
15IHateFactorial0.54Recurrence relation
15Puzzles0.54Two graph theory problems
15johnny0090.54Prime Or Composite - Proof re...
16Punch0.43No. of ways to seat round a ta...
16anemone0.43Find a_{100000}
16ATroelstein0.43Proving the solution of a recu...
16QuestForInsight0.43Natural numbers form a poset u...
16Casual0.43Logic puzzle: students, cities...
16Barioth0.43Logic, proving theorem in form...
16Petrus0.43Combinatorics Word Problem
16ssome help0.43Whole number solutions
16mathworker0.43a tough combinatorics problem
16Ragnarok0.43How to remember set theory pro...
16cocoabeens0.43Formal contrapositive proof
16dana0.43identity function
16Csharp0.43Cardinality, Subsets, Sequence...
16sarrah0.43on induction as you kindly req...
16rayne0.43Negation of this statement?
16Mathick0.43Proof of sets
16Ciaran0.43Surjective functions from a se...
16ozkan120.43infinite set
16Natalie0.43Is this transitive closure cor...
16Plonker0.43Sets, Relations and Functions
17Ackbach0.22Question in Landau's Foundatio...
17conscipost0.22Bounds on size of subset of ad...
17rcs0.22infinite elements in the unive...
17Poirot0.22Proof by contradiction
17Swlabr0.22Coprime mod n implies coprime...
17bincybn0.22Sum of a discrete finite seque...
17Walshy0.22Help with a Mathematical Induc...
17Arnold0.22Graph two colours, no monochro...
17Valtham0.22Creating Symbolic Versions
17wittysoup0.22Combinatorics question involvi...
17fumbles0.22Formal Logic Proof
17mathmaniac0.22How many combinations of natur...
17paulmdrdo0.22Inclusion-Exclusion property
17sbrajagopal26900.22Proof of Inequality by Inducti...
17Rido120.22Cartesian Product
17repoman0.22Discrete Math Graph Theory
17katye3330.22Help with an Equivalence Relat...
17MI50.22Counting proof of the addition...
17annie0.22Converse,the contrapositive an...
17Fermat0.22Knaster Tarski proof
17magneto0.22Pigeonhole Principle?
17abdolah0.22Chromatic number of a graph em...
17c4nn3t0.22Simplification of logic
17mathgirl0.22chordal graphs and perfect eli...
17kp1005910.22well formed formulae in Predic...
17normaldistribut0.22Diagraph of the relation
17Olok0.22Find the number of arrangement...
17Romono0.22How do you disprove this?
17Line0.22Unbounded logical trees (2)
17Henry R0.22How to give a proof of tautolo...
17vincentvance0.22Finding particular solution to...
17HELPMEHELPME0.22Number Systems
17stanyeo19840.22Recurrence Relation
17stan19920.22Prove that the expression is a...
17narledge0.22Proving Theorem help
17student0.22Tournament Scheduling
17Phar2wild0.22Is Cantor's second diagonal pr...
17Ella0.22A problem in set theory
17fatineouahbi0.22Composite applications
17bunyonb0.22[Series] State the first four ...
18Chris L T5210.11Why should we study logic?
18Jameson0.11Prove sum of (-1)^i times n ch...
18Bacterius0.11Showing the nth prime is primi...
18bkarpuz0.11Orthogonality of stirling numb...
18grgrsanjay0.11Garland trouble
18Chinta0.11Problem on Graph Theory and Al...
18janvdl0.11Recognisable colourings of gra...
18Also sprach Zarathustra0.11Transitive sets.
18DanSlevin0.11Solving Recurrence Equation
18William0.11Mathematical Induction questio...
18VincentP0.11Sum with Binomial Coefficients
18Lolyta0.11Diophantine equation second gr...
18marobin0.11Confusion with variables when ...
18hmmm160.11The cumulative hierarchy and t...
18noof0.11Question in Function
18simwun0.11Basic Set theory help
18cept0.11Vertices of Attachment Questio...
18veronica19990.11finding the unit digit
18Reckoner0.11Induction Proof of Inequality ...
18matqkks0.11Mathematical Induction
18Bushy0.11Permutation Question
18kanderson0.11Book Recommendations for Proof...
18Alan0.11Something in Measure Theory
18VoNemo190.11If S has the same number of el...
18topsquark0.11Induction Proof
18iany000.11Problem on Graph Theory and Al...
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18eric340.11Mathematical Induction problem
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18schinb650.11find the intersection value of...
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18dizzieko030.11Stuck on Venn Diagram Problem
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18lamsung0.11cardinality of a infinite subs...
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18needmathhelp0.11Proof by Mathematical Inductio...
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18Damo0.11Proof by Induction
18Voehet0.11Predicate Logic-Discrete Math
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18Epaulaland0.11Random graphs are a fascinatin...
18logan30.11Proving a Set Theory Statement...
18tragito890.11Simplest Proof of Satisfiabili...
18zenakent0.11Some help with some problems a...
18RaTawer0.11Look for help with combination...
18Moodion0.11Direct Proof of an Inequality
18yarnlife0.11Mathematical Thinking - Matric...
18Matti0.11Seeking general solution for G...
18samir0.11Pattern description: powers of...
18malloryjohn0.11creating theorems for an axiom...
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18mathewslauren0.11Logic: Reductio Ad Absurdem As...
18lize0.11Conditional proof for multiple...
18MupptMath0.11Proving the symmetry of self c...
18Theia0.11Analyzing a Difference Equatio...
18oriel0.11Basic Question
18Mei0.11Combinatorics problem. Discret...
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18chanimal0.11Propositional Logic
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18jmprada0.117 nodes
18bke07120.11Venn diagram and table word pr...
18biocamme0.11prove relationship between set...
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18Jkawa0.11Diophantine Equation
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18johndunlop0.11How to solve this problem?
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18mehdi980.11linear conqruence and relation...
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18daniel felipe0.11Demonstration of set operation
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18natalie2060.11Translate argument into symbol...
18aconti0.11negation proof
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