Disjunction - Stanford Encyclopedia of Philosophy
Mar 23, 2016 · In logic, disjunction is a binary connective (∨) classically interpreted as a truth function the output of which is true if at least one of the input sentences (disjuncts) is true, and false …
Disjunction (Stanford Encyclopedia of Philosophy/Winter 2002 Edition)
Jan 6, 2001 · Disjunction Disjunction is a binary truth-function, the output of which is a sentence true if at least one of the input sentences (disjuncts) is true, and false otherwise. Disjunction, together with …
Disjunction - Stanford Encyclopedia of Philosophy
Jan 6, 2001 · Disjunction is a binary truth-function, the output of which is a sentence true if at least one of the input sentences (disjuncts) is true, and false otherwise. Disjunction, together with negation, …
Disjunction - Stanford Encyclopedia of Philosophy
In logic, disjunction is a binary connective (∨ ∨) classically interpreted as a truth function the output of which is true if at least one of the input sentences (disjuncts) is true, and false otherwise. Its …
Natural Deduction Systems in Logic - Stanford Encyclopedia of …
Oct 29, 2021 · ‘Natural deduction’ designates a type of logical system described initially in Gentzen (1934) and Jaśkowski (1934). It also designates the type of reasoning that these logical systems …
The Turn to Heyting’s Formalized Logic and Arithmetic
The Turn to Heyting’s Formalized Logic and Arithmetic 1. Some early results Intuitionistic propositional logic is not a finitely valued logic. Gödel (1932) showed that Heyting’s system for intuitionistic …
Disjunction - Stanford Encyclopedia of Philosophy
Notes to Disjunction 1. We might formalize this "generalized" version of exclusive disjunction as a prefix quantifier that can range over any number of formulae, and is true if and only if exactly one of the …
The Disjunctive Theory of Perception - Stanford Encyclopedia of …
Jul 10, 2009 · For in certain places he says that his Perception-Illusion disjunctions permit a description of what is seen in terms of how the thing looks, thereby allowing the following kind of Perception …
Disjunction > Notes (Stanford Encyclopedia of Philosophy)
Notes to Disjunction 1. “ De vraag naar de geldigheid van het principium tertii exclusi is dus aequivalent met de vraag naar de mogelijkheid van onoplosbare wiskundige problemen. Voor de wel eens …
Proof-Theoretic Semantics - Stanford Encyclopedia of Philosophy
Examples of Proof-theoretic Validity Prawitz’s definition of validity, of which there are several variants, can be reconstructed as follows. We consider only the constants of positive propositional logic …