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…
Satisfiability (SAT)
Satisfiability determines if a logical formula can be true under any interpretation.…
Robinson Arithmetic
Robinson arithmetic is a simplified version of Peano arithmetic, omitting the induction…
Pure Predicate Logic
Pure predicate logic, also known as pure first-order logic, is a formal…
Pseudo Modus Ponens
Pseudo modus ponens is an axiom representing assertion, stating that if A…
Propositional Letters in Logic
Propositional letters are fundamental variables in propositional logic. They act as placeholders…
Proof-Theoretic Consequence
Proof-theoretic consequence, also known as syntactic consequence, explores logical entailment based on…
Philonian Conditional
The Philonian conditional, also known as the material conditional, is a key…