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
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 …
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 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 …
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 …
Causal Theories of Mental Content - Stanford Encyclopedia of Philosophy
Feb 4, 2010 · Because there appears always to be this option of making the content of a term some disjunction of items, the problem has been called “the disjunction problem”. [6] As was noted above, …
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 …
Propositional Logic - Stanford Encyclopedia of Philosophy
May 18, 2023 · Propositional logic is the study of the meanings of, and the inferential relationships that hold among, sentences based on the role that a specific class of logical operators called the …
Sentence Connectives in Formal Logic - Stanford Encyclopedia of …
May 4, 2010 · The remaining 12 binary truth-functions thus exhibit the behaviour we saw with the disjunction truth-function; the corresponding connectives are what Gabbay calls weakly classical: …