Question

Express the definition of even using universal and existential quantifiers

score 760 · Answer 1 · 2026-03-25 09:14:45

760

Views

Express the definition of even using universal and existential quantifiers

Published on 25 Mar 2026 - 9:14

score 85 · Answer 2 · 2026-03-25 09:17:56

85

Views

What is the negation of this sentence

Published on 25 Mar 2026 - 9:17

score 27 · Answer 3 · 2019-08-04 17:31:18

27

Views

Convert the following to clausal form

Published on 04 Aug 2019 - 17:31

score 560 · Answer 4 · 2019-08-04 20:42:55

560

Views

Proof for logical implication : $\exists_x A(x) \rightarrow \forall_x B(x) \implies \forall_x [A(x) \rightarrow B(x)]$

Published on 04 Aug 2019 - 20:42

score 75 · Answer 5 · 2019-08-05 20:53:17

75

Views

Is it right to render the quantifier of existence through a disjunction during skolemization

Published on 05 Aug 2019 - 20:53

score 194 · Answer 6 · 2026-03-26 19:18:37

194

Views

Difficulty understanding Metamath definitions of proper substitution.

Published on 26 Mar 2026 - 19:18

score 84 · Answer 7 · 2019-08-07 15:25:16

84

Views

Can't understand the meaning of this simple statement

Published on 07 Aug 2019 - 15:25

score 1.1k · Answer 8 · 2019-08-07 16:33:29

1.1k

Views

Why is $\exists y \in B, \ \forall x \in A, \ P(x,y) $ stronger than $\forall x \in A,\ \exists y \in B, \ P(x,y)$

Published on 07 Aug 2019 - 16:33

score 106 · Answer 9 · 2026-03-25 09:16:59

106

Views

There is a natural number, whose every divisor is smaller than 147. How to write formally?

Published on 25 Mar 2026 - 9:16

score 55 · Answer 10 · 2019-08-11 18:25:02

55

Views

Is it right to change variables at this situation during skolemization?

Published on 11 Aug 2019 - 18:25

score 157 · Answer 11 · 2019-08-13 11:54:00

157

Views

How to prove validity of this formula? $\forall x [P(x)\rightarrow G(x)]\rightarrow [\exists x P(x) \rightarrow \exists x G(x)]$

Published on 13 Aug 2019 - 11:54

score 155 · Answer 12 · 2026-03-25 09:12:53

155

Views

Question about existential quantifiers

Published on 25 Mar 2026 - 9:12

score 122 · Answer 13 · 2026-03-25 09:18:52

122

Views

Negating "$\forall n\in \Bbb N$ and $\forall\varepsilon>0$, $\exists A\in\mathcal A$ such that $n<|a|<n+\varepsilon$ for infinitely many $a\in A$."

Published on 25 Mar 2026 - 9:18

score 467 · Answer 14 · 2019-08-14 20:38:08

467

Views

Interpreting the meaning of $\exists x \ni \forall y \ \exists z \ni x+y=z$

Published on 14 Aug 2019 - 20:38

score 254 · Answer 15 · 2019-08-16 07:04:12

254

Views

First Order Logic: Diffrence b/w $\{\forall x P(x) \implies Q(x) \}$ and $\{ (\forall x P(x)) \implies Q(x)) \}$

Published on 16 Aug 2019 - 7:04

List Question

Express the definition of even using universal and existential quantifiers

What is the negation of this sentence

Convert the following to clausal form

Proof for logical implication : $\exists_x A(x) \rightarrow \forall_x B(x) \implies \forall_x [A(x) \rightarrow B(x)]$

Is it right to render the quantifier of existence through a disjunction during skolemization

Difficulty understanding Metamath definitions of proper substitution.

Can't understand the meaning of this simple statement

Why is $\exists y \in B, \ \forall x \in A, \ P(x,y) $ stronger than $\forall x \in A,\ \exists y \in B, \ P(x,y)$

There is a natural number, whose every divisor is smaller than 147. How to write formally?

Is it right to change variables at this situation during skolemization?

How to prove validity of this formula? $\forall x [P(x)\rightarrow G(x)]\rightarrow [\exists x P(x) \rightarrow \exists x G(x)]$

Question about existential quantifiers

Negating "$\forall n\in \Bbb N$ and $\forall\varepsilon>0$, $\exists A\in\mathcal A$ such that $n<|a|<n+\varepsilon$ for infinitely many $a\in A$."

Interpreting the meaning of $\exists x \ni \forall y \ \exists z \ni x+y=z$

First Order Logic: Diffrence b/w $\{\forall x P(x) \implies Q(x) \}$ and $\{ (\forall x P(x)) \implies Q(x)) \}$

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