List questions from discrete-mathematics

Published on 01 Apr 2026 - 10:20

44

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Clarification on theorem $(\forall x | R : P) \equiv (\forall x |: R \lor P \equiv P)$

Published on 25 Mar 2026 - 14:26

185

Views

A question regarding construction of a graph.

Published on 25 Mar 2026 - 6:01

370

Views

Given a Parity-check matrix, find all elements in $C$, correct a word and count all words that can not be corrected.

Published on 25 Mar 2026 - 11:13

137

Views

Reflexive and transitive relations

Published on 25 Mar 2026 - 5:58

504

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Proving the Multinomial Theorem--Collapsing Double Sum (Multiple Summation Step)

Published on 23 Mar 2026 - 8:03

1k

Views

Proving Inequalities With Mathematical Induction

Published on 26 Mar 2026 - 12:33

78

Views

pegionhole with assumptions?

Published on 27 Mar 2026 - 5:22

64

Views

Show that function$ f : Z → Z × Z$ such that $f(n) = (−n, 2n − 1)$ is bijective (or not).

Published on 01 Apr 2018 - 8:30

380

Views

Discrete mathematics, antecedent and subsequent of an implication logic

Published on 25 Mar 2026 - 20:10

44

Views

Compute the terms $c_2,c_3,c_4$ of a recursively defined relation $c_k=c_{k-1}+kc_{k-2}+1$ ...

Published on 30 Mar 2026 - 7:11

2.3k

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Suppose that $A, B$ and $C$ are sets such that $A\subseteq B$ and $B\subseteq C$. Show that $A\subseteq C$

Published on 30 Mar 2026 - 7:08

321

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How to prove Generalized DeMorgan's Laws

Published on 30 Mar 2026 - 1:50

2.4k

Views

Proof By Induction: $\sum_{i=1}^n \frac{1}{\sqrt i} > \sqrt n$

Published on 26 Mar 2026 - 12:36

78

Views

Logic Laws and Sets

Published on 02 Apr 2018 - 1:16

List Question

What are the planes of $AG_2(2)$?

Clarification on theorem $(\forall x | R : P) \equiv (\forall x |: R \lor P \equiv P)$

A question regarding construction of a graph.

Given a Parity-check matrix, find all elements in $C$, correct a word and count all words that can not be corrected.

Reflexive and transitive relations

Proving the Multinomial Theorem--Collapsing Double Sum (Multiple Summation Step)

Proving Inequalities With Mathematical Induction

pegionhole with assumptions?

Show that function$ f : Z → Z × Z$ such that $f(n) = (−n, 2n − 1)$ is bijective (or not).

Discrete mathematics, antecedent and subsequent of an implication logic

Compute the terms $c_2,c_3,c_4$ of a recursively defined relation $c_k=c_{k-1}+kc_{k-2}+1$ ...

Suppose that $A, B$ and $C$ are sets such that $A\subseteq B$ and $B\subseteq C$. Show that $A\subseteq C$

How to prove Generalized DeMorgan's Laws

Proof By Induction: $\sum_{i=1}^n \frac{1}{\sqrt i} > \sqrt n$

Logic Laws and Sets

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