# Discrete Math Forum

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

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

• Replies: 4
• Views: 3,745
Jun 14th 2014, 01:54 AM

• Replies: 0
• Views: 3,697
Feb 11th 2011, 11:34 AM
3. ### List of rules used to moderate MHF - please read carefully.

• Replies: 0
• Views: 2,323
Jul 19th 2010, 10:33 PM
1. ### [SOLVED] if and else statements rogether with propositionlogic

• Replies: 10
• Views: 616
Jul 7th 2011, 04:31 AM
2. ### [SOLVED] question about how to determine Tautologies, Contradictions & Contingent propositions

• Replies: 8
• Views: 1,324
Jul 6th 2011, 01:47 PM
3. ### [SOLVED] questions about elements in sets ...

• Replies: 5
• Views: 421
Jul 6th 2011, 12:47 PM
4. ### Permutation of items with a constant order subset.

• Replies: 4
• Views: 512
Jul 6th 2011, 08:50 AM
5. ### Mathematical induction: sum of odd numbers.

• Replies: 10
• Views: 2,077
Jul 6th 2011, 08:45 AM
6. ### First-order formulae for b is greater than or equal to a.

• Replies: 1
• Views: 705
Jul 5th 2011, 10:51 AM
7. ### Set of 13 real numbers

• Replies: 2
• Views: 550
Jul 5th 2011, 08:37 AM
8. ### Difine a first order formula for positive numbers

• Replies: 2
• Views: 538
Jul 5th 2011, 07:57 AM
9. ### Question on a surjective map

• Replies: 2
• Views: 443
Jul 5th 2011, 07:53 AM
10. ### Foundations of mathematics - something is troubling me

• Replies: 3
• Views: 575
Jul 5th 2011, 06:55 AM
11. ### Problem with proof by mathematical induction

• Replies: 1
• Views: 405
Jul 5th 2011, 12:56 AM
12. ### Find a bijection f : R --> ( R - {0})

• Replies: 4
• Views: 678
Jul 4th 2011, 08:37 PM
13. ### Closed-form solution of a recurrence relation.

• Replies: 6
• Views: 1,751
Jul 4th 2011, 02:06 PM
14. ### Number of different partitions

• Replies: 3
• Views: 560
Jul 4th 2011, 11:31 AM
15. ### cardinality of L inside V

• Replies: 4
• Views: 434
Jul 3rd 2011, 08:29 PM
16. ### How to write this in first order peano arithmetic

• Replies: 6
• Views: 679
Jul 3rd 2011, 02:23 PM
17. ### measure of set satisfying ~CH

• Replies: 6
• Views: 801
Jul 1st 2011, 09:26 PM
18. ### Blank tape halting problem help

• Replies: 3
• Views: 1,325
Jul 1st 2011, 02:38 AM
19. ### A set of numbers which i dont understand.

• Replies: 4
• Views: 678
Jun 30th 2011, 10:32 AM
20. ### how to prove if a and b are recursively enumerable sets on N then so is

• Replies: 2
• Views: 563
Jun 30th 2011, 02:25 AM
21. ### Total number of possible JPEG's

• Replies: 3
• Views: 810
Jun 29th 2011, 09:40 AM
22. ### How many equivalent classes there are?

• Replies: 15
• Views: 1,630
Jun 28th 2011, 05:08 AM
23. ### any denumerable set has uncountably many subsets

• Replies: 2
• Views: 737
Jun 27th 2011, 06:49 AM
24. ### Strategy games

• Replies: 1
• Views: 962
Jun 24th 2011, 12:56 AM
25. ### expansion

• Replies: 5
• Views: 538
Jun 21st 2011, 09:35 PM
26. ### [SOLVED] induction with a binomial

• Replies: 2
• Views: 476
Jun 21st 2011, 08:22 PM
27. ### Is this proof by induction set out well?

• Replies: 6
• Views: 563
Jun 20th 2011, 03:02 PM
28. ### Graph from Adjacency Matrix

• Replies: 1
• Views: 569
Jun 20th 2011, 08:18 AM

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# prove a function tonne reflexive symmetric and transitive

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