Question

Is there a standard quantifier notation for an exact number of true values?

score 135 · Answer 1 · 2026-03-25 09:48:42

135

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Is there a standard quantifier notation for an exact number of true values?

Published on 25 Mar 2026 - 9:48

score 201 · Answer 2 · 2018-12-08 20:07:08

201

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Proving $\forall x \forall y Rxy \therefore \forall x \forall y Ryx$.

Published on 08 Dec 2018 - 20:07

score 1k · Answer 3 · 2018-12-09 06:31:29

1k

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Why $∀x(P(x)→Q)$ is equivalent to $∃xP(x)→Q$

Published on 09 Dec 2018 - 6:31

score 660 · Answer 4 · 2018-12-09 12:34:08

660

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Proving ∀x∃yRxy,∀x∀y(Rxy→∃zRzx), ∀x∀y(Ryx→∀zRxz) ∴∀x∀yRxy

Published on 09 Dec 2018 - 12:34

score 535 · Answer 5 · 2026-03-25 07:38:17

535

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Predicate Calculus and Statement

Published on 25 Mar 2026 - 7:38

score 55 · Answer 6 · 2026-03-25 04:35:37

55

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Universal Quantified Statement being equivalent when variables are swapped

Published on 25 Mar 2026 - 4:35

score 115 · Answer 7 · 2018-12-20 17:20:52

115

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We know an example iff any exist

Published on 20 Dec 2018 - 17:20

score 440 · Answer 8 · 2018-12-23 07:53:17

440

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How to express propositional functions with multiple quantifiers using "AND" and "OR'?

Published on 23 Dec 2018 - 7:53

score 146 · Answer 9 · 2018-12-24 13:52:04

146

Views

Finding prenex normal form of a formula

Published on 24 Dec 2018 - 13:52

score 2k · Answer 10 · 2018-12-24 16:16:51

2k

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Is it possible to convert $\forall$ quantifiers to $\exists$ quantifiers without negation?

Published on 24 Dec 2018 - 16:16

score 231 · Answer 11 · 2018-12-24 17:33:47

231

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Any subcollection $\mathcal A_1$ of a locally finite collection $\mathcal A$ of subsets of $X$ is locally finite.

Published on 24 Dec 2018 - 17:33

score 3.8k · Answer 12 · 2019-01-01 00:07:05

3.8k

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Why is the negation of the statement $\exists x P(x)$ given by $\forall x (\neg P(x))$ and not $\not \exists x P(x)$?

Published on 01 Jan 2019 - 0:07

score 92 · Answer 13 · 2019-01-01 06:05:53

92

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Verifying an inequality if $A \subset \Bbb{C}$ is compact?

Published on 01 Jan 2019 - 6:05

score 125 · Answer 14 · 2019-01-07 01:57:04

125

Views

How to Prove It - Ch2 Sec 2 Exercise 2a

Published on 07 Jan 2019 - 1:57

score 116 · Answer 15 · 2019-01-13 05:21:04

116

Views

Is there a notation for the unique value that satisfies a predicate?

Published on 13 Jan 2019 - 5:21

List Question

Is there a standard quantifier notation for an exact number of true values?

Proving $\forall x \forall y Rxy \therefore \forall x \forall y Ryx$.

Why $∀x(P(x)→Q)$ is equivalent to $∃xP(x)→Q$

Proving ∀x∃yRxy,∀x∀y(Rxy→∃zRzx), ∀x∀y(Ryx→∀zRxz) ∴∀x∀yRxy

Predicate Calculus and Statement

Universal Quantified Statement being equivalent when variables are swapped

We know an example iff any exist

How to express propositional functions with multiple quantifiers using "AND" and "OR'?

Finding prenex normal form of a formula

Is it possible to convert $\forall$ quantifiers to $\exists$ quantifiers without negation?

Any subcollection $\mathcal A_1$ of a locally finite collection $\mathcal A$ of subsets of $X$ is locally finite.

Why is the negation of the statement $\exists x P(x)$ given by $\forall x (\neg P(x))$ and not $\not \exists x P(x)$?

Verifying an inequality if $A \subset \Bbb{C}$ is compact?

How to Prove It - Ch2 Sec 2 Exercise 2a

Is there a notation for the unique value that satisfies a predicate?

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