Question

Help with quantifiers: $\forall y\in\mathbb{Z},\exists x\in\mathbb{Z},(x^2+y\geq1)$

score 54 · Answer 1 · 2019-01-23 21:05:21

54

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Help with quantifiers: $\forall y\in\mathbb{Z},\exists x\in\mathbb{Z},(x^2+y\geq1)$

Published on 23 Jan 2019 - 21:05

score 109 · Answer 2 · 2019-01-24 10:00:14

109

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How to read $\exists x \forall y \exists z((x + y)z = 1)$?

Published on 24 Jan 2019 - 10:00

score 44 · Answer 3 · 2026-03-25 06:04:09

44

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∀x(I(x) → ∃y(I(y) ∧ (x < y))), I(x): x is an integer

Published on 25 Mar 2026 - 6:04

score 187 · Answer 4 · 2019-01-24 22:08:13

187

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Determining Statement Truth or Falsity?

Published on 24 Jan 2019 - 22:08

score 598 · Answer 5 · 2026-03-25 08:10:48

598

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How can I prove the following with natural deduction rules? $¬∀x∃yP(x,y) ⊢ ∃x∀y¬P(x,y)$

Published on 25 Mar 2026 - 8:10

score 34 · Answer 6 · 2026-03-25 01:16:21

34

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Puzzling axiom for modal cylindric algebras

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score 751 · Answer 7 · 2019-01-26 18:15:53

751

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The real and deep meaning of quantifiers in first order logic and set theory

Published on 26 Jan 2019 - 18:15

score 34 · Answer 8 · 2019-01-27 15:43:18

34

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Logic Question regarding quantifiers

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score 349 · Answer 9 · 2019-01-30 10:29:09

349

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What does ∀x¬∃xQ(x,x)

Published on 30 Jan 2019 - 10:29

score 183 · Answer 10 · 2019-02-03 02:30:47

183

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Correct logical quantifier notation with greater than/less than relations

Published on 03 Feb 2019 - 2:30

score 85 · Answer 11 · 2019-02-03 23:32:17

85

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Difference between 2 logical expressions

Published on 03 Feb 2019 - 23:32

score 1.2k · Answer 12 · 2019-02-05 04:16:11

1.2k

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Negation of Quantified Statements

Published on 05 Feb 2019 - 4:16

score 212 · Answer 13 · 2019-02-05 12:52:52

212

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Are variables to the left of | in set-builder notation free? How is that variable quantified in the equivalent definition?

Published on 05 Feb 2019 - 12:52

score 118 · Answer 14 · 2019-02-06 01:27:57

118

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Write using quantifier notation.

Published on 06 Feb 2019 - 1:27

score 463 · Answer 15 · 2019-02-08 14:12:27

463

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Nested Quantifier Practice Question: Some student has never been asked a question by a faculty member.

Published on 08 Feb 2019 - 14:12

List Question

Help with quantifiers: $\forall y\in\mathbb{Z},\exists x\in\mathbb{Z},(x^2+y\geq1)$

How to read $\exists x \forall y \exists z((x + y)z = 1)$?

∀x(I(x) → ∃y(I(y) ∧ (x < y))), I(x): x is an integer

Determining Statement Truth or Falsity?

How can I prove the following with natural deduction rules? $¬∀x∃yP(x,y) ⊢ ∃x∀y¬P(x,y)$

Puzzling axiom for modal cylindric algebras

The real and deep meaning of quantifiers in first order logic and set theory

Logic Question regarding quantifiers

What does ∀x¬∃xQ(x,x)

Correct logical quantifier notation with greater than/less than relations

Difference between 2 logical expressions

Negation of Quantified Statements

Are variables to the left of | in set-builder notation free? How is that variable quantified in the equivalent definition?

Write using quantifier notation.

Nested Quantifier Practice Question: Some student has never been asked a question by a faculty member.

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