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Discrete Mathematics, Set Theory, and Logic

Discrete Math, Graph Theory, Combinatorics, Recurrence Relations (Difference Equations), Set Theory, General and Symbolic Logic
chisigma
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Difference equation tutorial: draft of part II
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2
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9K
chisigma
chisigma
chisigma
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Difference equation tutorial: draft of part I
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3
Views
9K
chisigma
chisigma
Ackbach
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Please Read Before Posting Logic Questions
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0
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8K
Ackbach
Ackbach
N
lattices
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0
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144
namya
N
P
Coefficent in a infinite power series
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1
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73
Country Boy
C
S
Proofs
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2
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204
Country Boy
C
C
Transition from Upper Bound definition for Sets to Sequences using Logical transitions & Set-Builder notation
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3
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3K
solakis
S
L
Graph: showing that diameter is greater than average pairwise distance
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4
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2K
lemonthree
L
M
Logic Proof With Rules of Replacement
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1
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170
Evgeny.Makarov
E
L
Prove the minimum and maximum edges in a graph
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6
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313
lemonthree
L
L
4 rod Tower of Hanoi proof
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0
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250
lemonthree
L
P
Set proof
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5
Views
227
Klaas van Aarsen
Klaas van Aarsen
S
Iterations
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3
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140
Country Boy
C
V
multiply indexed matrices
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3
Views
482
Country Boy
C
L
KE Deduction
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4
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1K
solakis
S
evinda
Why do we get like that the message?
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2
Views
163
evinda
evinda
evinda
How do we choose the edges?
Replies
2
Views
189
evinda
evinda
J
Find Proofs for the following 5 propositional logic statements
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2
Views
999
solakis
S
evinda
Find total number of republications
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22
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446
evinda
evinda
H
Predicate logic
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8
Views
237
solakis
S
E
Rules of inference
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3
Views
597
solakis
S
mathmari
Logical negation of statements
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6
Views
216
solakis
S
mathmari
Prove that the statement is always true using the rules of boolean algebra
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9
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300
solakis
S
mathmari
Show that the set is inductive
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10
Views
308
Klaas van Aarsen
Klaas van Aarsen
evinda
Fractional knapsack
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1
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340
Evgeny.Makarov
E
evinda
Master Theorem-Relation of the two functions
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2
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198
evinda
evinda
mathmari
De Morgan Rules - Logical statements
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11
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303
mathmari
mathmari
mathmari
Draw a NAND-gate to get that output
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16
Views
390
mathmari
mathmari
L
Relation composition
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7
Views
319
Evgeny.Makarov
E
mathmari
Translate the statements into set inclusion
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5
Views
276
Klaas van Aarsen
Klaas van Aarsen
L
Defining reflexive relations
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3
Views
271
Country Boy
C
L
The cardinality of the set that is the intersection of all inductive sets.
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0
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129
Line
L
L
Counting the elements in sets
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5
Views
321
Opalg
Opalg
L
summation and product notation rules
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1
Views
307
topsquark
topsquark
M
2.11.2: Compute change.
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1
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1K
moodtl32
M
L
Predicate properties
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1
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271
Evgeny.Makarov
E
H
Question
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2
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305
skeeter
skeeter
Furthark
Attempting to add logic mathematics to a college paper - need your input
Replies
2
Views
910
Furthark
Furthark
C
Pigeonhole Principle Problem
Replies
2
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325
Carl
C
F
Proof by induction? No Idea what I should do :(
Replies
4
Views
292
Opalg
Opalg
A
Question about Successor Function
Replies
2
Views
504
Evgeny.Makarov
E
E
proofs with real numbers
Replies
9
Views
566
Country Boy
C
M
Binomial problem.
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4
Views
398
Country Boy
C
Peter
ZFC and the Axiom of Power Sets ...
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2
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379
Peter
Peter
Dhamnekar Winod
[SOLVED] Sequences and series
Replies
3
Views
277
MarkFL
M
C
Discrete math can you solve immediately
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0
Views
292
ceasertr
C
evinda
Construct grammar and find its type
2
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26
Views
826
Klaas van Aarsen
Klaas van Aarsen
Julio
Bipartite graphs
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1
Views
656
caffeinemachine
caffeinemachine
G
Euler's totient function
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1
Views
349
GJA
G
mathmari
Optimal time for scheduling the tasks
Replies
1
Views
250
Klaas van Aarsen
Klaas van Aarsen
mathmari
Total weight of Huffman Code
Replies
1
Views
233
Klaas van Aarsen
Klaas van Aarsen
A
Help with a simple deduction
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0
Views
207
agapito
A
evinda
Find the general formula of the recurrence relation
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13
Views
388
evinda
evinda
evinda
Construct circuit that implements truth table
2
Replies
45
Views
1K
evinda
evinda
evinda
Truth tables
Replies
2
Views
297
evinda
evinda
evinda
Find truth value of propositions
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17
Views
423
evinda
evinda
A
Godelian self-reference
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0
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332
agapito
A
D
Symbolic logic
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1
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554
HallsofIvy
H
P
Please help with bool algebra and logic things!
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2
Views
655
Evgeny.Makarov
E
F
Introduction to Set Theory Stream
Replies
1
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464
Klaas van Aarsen
Klaas van Aarsen
J
Probability of Having a Totally Dominating Set (Probabilistic Methods)
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1
Views
759
joypav
J
J
Minimum Degree of a Random Graph (Probabilistic Method)
Replies
1
Views
544
joypav
J
J
Turans Theorem (Dual?)
Replies
1
Views
519
joypav
J
mathmari
[SOLVED] Give a set and a relation that satisfies the properties
Replies
10
Views
986
mathmari
mathmari
mathmari
Hilbert's hotel and busses : Injectivity - Surjectivity
Replies
7
Views
931
Klaas van Aarsen
Klaas van Aarsen
mathmari
Show that ~ is an equivalence relation
Replies
2
Views
551
Evgeny.Makarov
E
mathmari
[SOLVED] Intesection of intervals
Replies
8
Views
701
mathmari
mathmari
P
Trouble with understanding section of FOL completeness proof
Replies
1
Views
435
Evgeny.Makarov
E
P
First-order logic formula satisfiable only if the domain of the valuation is infinite?
Replies
2
Views
497
pooj4
P
mathmari
Statements about the set 2^M
Replies
5
Views
612
topsquark
topsquark
mathmari
[SOLVED] Sets so that the cartesian product is commutative
Replies
2
Views
498
mathmari
mathmari
P
Proving in first order logic for some arbitrary valuations of sigma in Machover's text
Replies
1
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493
Evgeny.Makarov
E
mathmari
[SOLVED] Induction: Each square can be covered by L-stones
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5
Views
577
mathmari
mathmari
Z
Help proving prime and permutation
Replies
1
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422
Klaas van Aarsen
Klaas van Aarsen
J
A Subset of a Graph with No Perfect Matching
Replies
1
Views
543
joypav
J
V
first state whether it can be solved using the Master Theorem, and if it can then use that. Otherwis
Replies
1
Views
617
HallsofIvy
H
G
sequence - inhomogeneous recursion
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2
Views
614
goohu
G
mathmari
Prime implicants and disjunctive minimal form
Replies
6
Views
775
Klaas van Aarsen
Klaas van Aarsen
C
Topology Munkres Chapter 1 exercise 2 e- Set theory
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3
Views
761
Evgeny.Makarov
E
C
Topology Munkres Chapter 1 exercise 2 b and c- Set theory equivalent statements
Replies
1
Views
626
Euge
Euge
S
How to prove the equality?
Replies
1
Views
663
Cbarker1
C
L
Do Gödel numbers can be used to derermine the usefulness of an infinite set as a complete whole?
Replies
0
Views
502
Line
L
Y
Cartesian Product - Proof
Replies
5
Views
2K
Olinguito
Olinguito
mathmari
Are the questions decidable?
Replies
1
Views
966
Evgeny.Makarov
E
Y
Operations on sets
Replies
2
Views
682
HallsofIvy
H
mathmari
Are the instances of PCP solvable?
Replies
0
Views
572
mathmari
mathmari
mathmari
Linear Codes : Error detection
Replies
0
Views
492
mathmari
mathmari
H
Number of ways to divide a square grid in half
Replies
3
Views
1K
Opalg
Opalg
A
Help with proof of equivalence
Replies
1
Views
653
Evgeny.Makarov
E
S
Discrete maths problem - tracing an algorithm
Replies
3
Views
766
Ackbach
Ackbach
mathmari
[SOLVED] Karnaugh Diagram
Replies
22
Views
2K
mathmari
mathmari
mathmari
Quine-McCluskey method: Prime implicants - disjunctive minimal forms
Replies
3
Views
650
Klaas van Aarsen
Klaas van Aarsen
D
Stuck on Derivation (Natural Deduction)
Replies
1
Views
586
Evgeny.Makarov
E
K
Intro to Logic (prove sequents)
Replies
1
Views
614
Evgeny.Makarov
E
mathmari
Two-element Boolean algebra: How are the equalities derived?
Replies
13
Views
2K
Klaas van Aarsen
Klaas van Aarsen
E
isomorphism of logic, arithmetic, and set theory
Replies
2
Views
2K
Eric
E
J
Predicate Logic: Semantics and Validity
Replies
1
Views
3K
Evgeny.Makarov
E
D
Mathematical Induction
Replies
1
Views
1K
Olinguito
Olinguito
M
prove primitive recursive
Replies
6
Views
2K
Evgeny.Makarov
E
G
Set Identity Proof
Replies
1
Views
739
Evgeny.Makarov
E
C
Equivalence Class
Replies
1
Views
786
GJA
G
C
[SOLVED] Set Theory
Replies
1
Views
757
Olinguito
Olinguito
A
Basic arithmetic proof
Replies
1
Views
757
Evgeny.Makarov
E
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