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Logical Truth via Truth Trees

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#logic #predicate-logic
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How to translate ∃x ∀y ∀z ( ( F(x,y) ∧ F(x,z) ∧ F(y≠z) ) → ¬F(y,z) )?

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What's the difference between $∀x\,∃y\,L(x, y)$ and $∃y\,∀x\,L(x, y)$?

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#predicate-logic #quantifiers
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Use quantifiers to express:"There is someone who loves no one besides himself or herself"

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#discrete-mathematics #predicate-logic
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Questions on Truth-Functional Logic

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#logic #predicate-logic #first-order-logic
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Proving a tautology via truth trees

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What an effect the location of quantifier has in such predicate logics

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#discrete-mathematics #logic #predicate-logic #quantifiers
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Help me understand quantifiers in logic

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#logic #predicate-logic
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Predicate Logic: $ ∀x (P(x) \lor Q(x)) ⊢ ∀xP(x) \lor ∀xQ(x) $

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#predicate-logic #natural-deduction
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What is the difference between There is at least one, Some, At least one when it comes to predicate logic?

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#discrete-mathematics #logic #predicate-logic
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Logic Problem about Complex Subjects and Predicates

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#logic #predicate-logic #first-order-logic #logic-translation
233
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How do I translate "Alma does not eat anything unless she eats an apple" into predicate logic?

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#discrete-mathematics #logic #predicate-logic
66
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$\exists (p(x)\rightarrow q(a)) \vdash \forall y p(y) \rightarrow q(a)$

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#logic #first-order-logic #predicate-logic #natural-deduction #formal-proofs
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Proving (or disproving) that two sets are equal

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#logic #proof-writing #predicate-logic
410
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Does this semantic tree close?

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#logic #predicate-logic #first-order-logic

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