# Discrete Math Forum

Discrete Math Help Forum: Discrete mathematics, logic, set theory

1. ### Difference equation tutorial: draft of part I

• Replies: 4
• Views: 3,811
Jun 14th 2014, 01:54 AM
2. ### Please read before posting logic questions.

• Replies: 0
• Views: 3,757
Feb 11th 2011, 11:34 AM
3. ### List of rules used to moderate MHF - please read carefully.

• Replies: 0
• Views: 2,366
Jul 19th 2010, 10:33 PM
1. ### Recuurence relation

• Replies: 1
• Views: 277
Apr 22nd 2009, 05:36 AM
2. ### relations

• Replies: 0
• Views: 291
Apr 22nd 2009, 04:55 AM
3. ### Equilvalence Relation proof

• Replies: 0
• Views: 650
Apr 22nd 2009, 03:58 AM
4. ### Determine whether these sets S are bounded, and determine sup(S) and inf(S) if they e

• Replies: 1
• Views: 996
Apr 22nd 2009, 03:05 AM
5. ### Finding solutions in integers with constraints...

• Replies: 1
• Views: 590
Apr 21st 2009, 09:41 PM
6. ### Cant find my error Mathematical Induction

• Replies: 1
• Views: 556
Apr 21st 2009, 12:00 PM
7. ### let f:A ---> B and g:B ---> C (if both are bijective, prove g o f is bijective)

• Replies: 1
• Views: 979
Apr 21st 2009, 10:45 AM
8. ### Let G be a simple planar graph such that every region of G has at least 5 edges on it

• Replies: 0
• Views: 352
Apr 21st 2009, 09:43 AM
9. ### The Hypercube Bn (B sub n) is Hamiltonian if n >= 2

• Replies: 0
• Views: 355
Apr 21st 2009, 09:40 AM
10. ### Let G be a smiple graph. Then G is bipartite if and only if it doesn't have odd cycle

• Replies: 0
• Views: 344
Apr 21st 2009, 09:37 AM
11. ### Boolean algebra question

• Replies: 1
• Views: 501
Apr 21st 2009, 07:51 AM
12. ### Russell's definition of minima of a class

• Replies: 0
• Views: 628
Apr 21st 2009, 06:24 AM
13. ### How can I prove this?

• Replies: 5
• Views: 1,875
Apr 20th 2009, 03:02 PM
14. ### Proofs: Domain of composite functions

• Replies: 2
• Views: 536
Apr 20th 2009, 02:49 PM
15. ### Equivalence Relation

• Replies: 4
• Views: 454
Apr 20th 2009, 02:37 PM
16. ### help in logic plzzzzzzzzzzz

• Replies: 3
• Views: 474
Apr 20th 2009, 02:25 PM
17. ### Boolean algebra help

• Replies: 1
• Views: 589
Apr 20th 2009, 04:13 AM
18. ### Formula of a summation

• Replies: 2
• Views: 611
Apr 19th 2009, 10:19 PM
19. ### Pigeonhole Principle

• Replies: 4
• Views: 746
Apr 19th 2009, 05:39 PM
20. ### How to solve this recurrence relation ?

• Replies: 6
• Views: 554
Apr 19th 2009, 04:31 PM
21. ### One more proof

• Replies: 1
• Views: 413
Apr 19th 2009, 02:02 PM
22. ### Trouble with Quick Proof

• Replies: 3
• Views: 587
Apr 19th 2009, 12:55 PM
23. ### problems about finding bargaining sets

• Replies: 0
• Views: 443
Apr 19th 2009, 04:45 AM
24. ### Is this function 1-1, onto, or invertable?

• Replies: 1
• Views: 344
Apr 18th 2009, 11:20 PM
25. ### Please verify my combination

• Replies: 4
• Views: 276
Apr 18th 2009, 06:14 PM
26. ### a(r)-5a(r-1)+6a(r-2)=2r +r

• Replies: 1
• Views: 341
Apr 18th 2009, 03:35 PM
27. ### [SOLVED] bit operations...need some help

• Replies: 2
• Views: 563
Apr 18th 2009, 03:05 PM
28. ### A={1,2,3…….n}

• Replies: 1
• Views: 287
Apr 18th 2009, 01:36 PM
29. ### let n >= 4 be an integer, prove..

• Replies: 3
• Views: 550
Apr 18th 2009, 09:54 AM

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# prove a function tonne reflexive symmetric and transitive

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