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New posts in discrete-mathematics
Find the number of integral solutions of $x_1, x_2, \dots, x_6$ satisfying the equations [closed]
combinatorics
discrete-mathematics
Where can I find a review of discrete math
soft-question
reference-request
education
discrete-mathematics
For all real numbers x, if x −⌊ x ⌋≥ 1/2 then ⌊2x ⌋= 2⌊x ⌋+ 1.
discrete-mathematics
inequality
logic
proof-writing
How do I formally express that a statement is true only if 3 propositions are true?
discrete-mathematics
propositional-calculus
How to find whether it is possible for each vertex of a graph to have a different degree?
graph-theory
discrete-mathematics
Giving a 1-hour talk to highschool math club: any topic suggestion?
combinatorics
discrete-mathematics
graph-theory
finite-fields
recreational-mathematics
Size of a union of two sets
elementary-set-theory
discrete-mathematics
(Simple) Examples on Non-Commutative Rings
discrete-mathematics
ring-theory
Prove composition of bijections is bijection
functions
discrete-mathematics
Quantifiers, predicates, logical equivalence
discrete-mathematics
logic
predicate-logic
quantifiers
Puzzle: Give an algorithm for finding a frog that jumps along the number line
discrete-mathematics
logic
algorithms
puzzle
Alternative proof Hall's marriage explanation
combinatorics
discrete-mathematics
graph-theory
What is the probability that a five-card poker hand contains all 4 suits?
probability
combinatorics
discrete-mathematics
poker
Is Cantor's diagonal argument dependent on the base used?
elementary-set-theory
discrete-mathematics
fractions
real-numbers
binary
Proving an equality involving compositions of an integer
combinatorics
discrete-mathematics
Is my understanding of anti-symmetry and symmetry correct?
discrete-mathematics
relations
Why aren't these two solutions equivalent? Combinatorics problem
combinatorics
discrete-mathematics
problem-solving
A magic trick - find out the fifth card if four is given
combinatorics
discrete-mathematics
graph-theory
contest-math
matching-theory
Modelling a problem in Graph Theory language
discrete-mathematics
logic
graph-theory
algorithms
artificial-intelligence
A recurrence for the number of non-crossing partitions without singletons, using Dyck paths
combinatorics
discrete-mathematics
combinatorial-proofs
set-partition
catalan-numbers
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