sense, propositions are "statements" that are truth-bearers. This conception of a proposition was supported by the philosophical school of logical positivism...

constant. Connectives can be used to connect logical formulas. For instance in the syntax of propositional logic, the binary connective ∨ {\displaystyle...

Logical consequence (also entailment) is a fundamental concept in logic which describes the relationship between statements that hold true when one statement...

yield true conclusions. Types of propositional fallacies: Affirming a disjunct – concluding that one disjunct of a logical disjunction must be false because...

construction of arguments based on them. Compound propositions are formed by connecting propositions by logical connectives representing the truth functions...

and the conclusion are propositions, i.e. true or false claims about what is the case. Together, they form an argument. Logical reasoning is norm-governed...

also called the logical not or logical complement, is an operation that takes a proposition P {\displaystyle P} to another proposition "not P {\displaystyle...

three inputs. The NOR operation is a logical operation on two logical values, typically the values of two propositions, that produces a value of true if...

simpler propositions linked by logical vocabulary like ∧ {\displaystyle \land } (and) or → {\displaystyle \to } (if...then). Simple propositions also have...

affairs. A logical picture of facts is a thought. A thought is a proposition with a sense. A proposition is a truth-function of elementary propositions. (An...