Recent Posts For Logic
Sentential Logic
Sentential logic, also known as propositional logic, examines the relationships between complete…
Sentence Letters in Propositional Logic
Sentence letters, also known as propositional variables, are fundamental symbols in propositional…
Semantically Closed Language
A semantically closed language includes its own truth predicate, enabling self-referential statements…
Semantic Validity and Tautologies in Logic
A semantically valid formula, or tautology, is a statement that holds true…
Semantic Tableau: A Tree-Based Proof Method in Logic
The semantic tableau method is a systematic proof technique in logic. It…
Semantic Consequence
Semantic consequence describes the logical relationship between premises and a conclusion in…
Self-Contradictory Statements: Understanding Logical Impossibility
A self-contradictory statement contains internal inconsistencies, making it logically impossible to be…