logical equivalence

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logical equivalence

logic

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philosophy of logic
Logic and information
…utilized in semantical discussions than logical equivalence. Hence the transition from one sentence to another logically equivalent one is disregarded for the purposes of meaning concepts. This disregard would be justifiable if one of the most famous theses of Logical Positivists were true in a sufficiently strong sense, viz., that…
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…utilized in semantical discussions than logical equivalence. Hence the transition from one sentence to another logically equivalent one is disregarded for the purposes of meaning concepts. This disregard would be justifiable if one of the most famous theses of Logical Positivists were true in a sufficiently strong sense, viz., that…
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formal logic
Logical manipulations in LPC
The intuitive connections between some and every noted earlier are reflected in the fact that the following equivalences are valid: (∃x)ϕx ≡ ∼(∀x)∼ϕx
(∀x)ϕx ≡ ∼(∃ x)∼ϕx These equivalences remain valid when ϕx is replaced by any wff, however
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The intuitive connections between some and every noted earlier are reflected in the fact that the following equivalences are valid: (∃x)ϕx ≡ ∼(∀x)∼ϕx
(∀x)ϕx ≡ ∼(∃ x)∼ϕx These equivalences remain valid when ϕx is replaced by any wff, however
Read More