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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: 3,185
    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: 3,396
    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: 1,725
    January 27th, 2012, 23:00 Go to last post
  1. Normal Thread Normal Threads

  2. Why isn't the circuit a combinatorial one?

    Started by evinda, June 21st, 2017 14:41
    • Replies: 9
    • Views: 92
    June 21st, 2017, 15:57 Go to last post
  3. Demonstration of set operation

    Started by daniel felipe, June 15th, 2017 18:51
    axbΔc=axbΔaxc, demonstration, demostracion, possibility, solve
    • Replies: 1
    • Views: 79
    June 16th, 2017, 16:28 Go to last post
  4. Partial Order Relation and Equivalence Relation

    Started by Yankel, June 6th, 2017 16:24
    order, partial, relation, r^-1], union
    • Replies: 5
    • Views: 116
    June 8th, 2017, 17:03 Go to last post
  5. Partial Order Relation on a Functions Set

    Started by Yankel, June 4th, 2017 02:17
    functions, order, partial, relation, set
    • Replies: 3
    • Views: 74
    June 4th, 2017, 18:29 Go to last post
  6. Different Number of Equivalence Relations

    Started by Yankel, May 24th, 2017 16:53
    approach, classes, equivalence, number, relations
    • Replies: 4
    • Views: 125
    May 27th, 2017, 04:46 Go to last post
  7. Proving sets

    Started by khoo, May 25th, 2017 22:21
    prove, proving, sets
    • Replies: 1
    • Views: 66
    May 26th, 2017, 07:11 Go to last post
    • Replies: 5
    • Views: 185
    May 11th, 2017, 22:56 Go to last post
  8. Two graph theory problems

    Started by Puzzles, May 9th, 2017 15:06
    bipartite, complete, graph, graphs, tree
    • Replies: 2
    • Views: 106
    May 10th, 2017, 18:17 Go to last post
  9. linear conqruence and relations problem

    Started by mehdi98, May 1st, 2017 10:02
    linear, linear congruence, mod, relations, solutions
    • Replies: 2
    • Views: 138
    May 1st, 2017, 16:34 Go to last post
  10. Pigeonhole Principle Problems

    Started by Yankel, April 30th, 2017 13:05
    couple, numbers, points, principle, prove
    • Replies: 2
    • Views: 110
    April 30th, 2017, 17:00 Go to last post
  11. Recurrence equation

    Started by Puzzles, April 23rd, 2017 09:54
    3 Pages
    1 2 3
    • Replies: 22
    • Views: 519
    April 24th, 2017, 15:22 Go to last post
  12. Help with difference equation

    Started by Puzzles, April 16th, 2017 12:22
    • Replies: 9
    • Views: 208
    April 16th, 2017, 14:21 Go to last post
  13. graph theory (permutation)

    Started by happinessuni, April 9th, 2017 17:44
    • Replies: 2
    • Views: 159
    April 11th, 2017, 09:37 Go to last post
  14. Predicate Logic

    Started by Yankel, April 8th, 2017 04:57
    lid, lids, number, phrase, pot
    • Replies: 3
    • Views: 159
    April 8th, 2017, 22:55 Go to last post
  15. Sets, Relations and Functions

    Started by Plonker, March 27th, 2017 20:49
    • Replies: 1
    • Views: 185
    March 28th, 2017, 13:47 Go to last post
  16. The infinity hotel

    Started by Yankel, March 24th, 2017 10:02
    hotel, infinite, number, people, room
    • Replies: 1
    • Views: 138
    March 24th, 2017, 17:47 Go to last post
  17. chordal graphs and perfect elimination orderings

    Started by mathgirl, March 22nd, 2017 02:54
    graph, pes, show, simplicial, vertex
    • Replies: 0
    • Views: 78
    March 22nd, 2017, 02:54 Go to last post
  18. Natural deduction

    Started by Mia Fuller, March 19th, 2017 11:14
    • Replies: 1
    • Views: 128
    March 20th, 2017, 14:08 Go to last post
  19. Permutations or Combination?

    Started by tmt, March 18th, 2017 13:32
    $x$s, combination, object, places, ways
    • Replies: 1
    • Views: 109
    March 18th, 2017, 13:45 Go to last post
  20. Combinatorics Problem

    Started by Puzzles, March 12th, 2017 17:44
    digit, made, numbers, problem, start
    • Replies: 4
    • Views: 199
    March 13th, 2017, 05:40 Go to last post
  21. Predicate logic question

    Started by tmt, March 9th, 2017 16:34
    exists, forall, happyy, land, predicate
    • Replies: 3
    • Views: 205
    March 10th, 2017, 10:55 Go to last post
  22. Another Logic Question

    Started by Plonker, March 9th, 2017 11:23
    • Replies: 1
    • Views: 133
    March 9th, 2017, 23:05 Go to last post
  23. Logic Questions

    Started by Plonker, March 6th, 2017 10:44
    • Replies: 1
    • Views: 117
    March 6th, 2017, 17:35 Go to last post
  24. Logic

    Started by JamesD, March 6th, 2017 03:36
    • Replies: 3
    • Views: 159
    March 6th, 2017, 12:20 Go to last post
  25. Symmetric Difference Problem

    Started by Yankel, March 2nd, 2017 10:50
    • Replies: 2
    • Views: 138
    March 3rd, 2017, 09:49 Go to last post
  26. Knaster Tarski proof

    Started by Fermat, March 1st, 2017 13:57
    attempt][1]][1], image, knaster, proof, [1]
    • Replies: 3
    • Views: 150
    March 1st, 2017, 20:42 Go to last post
  27. set theory ordinal proof

    Started by Fermat, March 1st, 2017 13:54
    $beta$, ordinal, proof, set, theory
    • Replies: 0
    • Views: 123
    March 1st, 2017, 13:54 Go to last post
  28. [SOLVED] Set theory problem

    Started by FallArk, February 25th, 2017 13:02
    find, function, f^-1gx, set, theory
    • Replies: 7
    • Views: 281
    February 25th, 2017, 18:35 Go to last post

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