Skolemization is a crucial technique in first-order logic for eliminating existential quantifiers. It involves introducing Skolem functions to preserve logical…
A situation is a set of circumstances or state of affairs to which truth-values of statements are relative. It's a…
A singular term in logic denotes a specific object or entity, unlike general terms referring to classes or properties. It's…
A singular proposition asserts something about a specific, unique individual or object, distinguishing it from general statements about categories or…
The single turnstile (⊢) symbol in logic signifies syntactic entailment. It indicates that a formula or set of formulas can…
The Sheffer stroke, also known as NAND, is a fundamental logical operation. It's a functionally complete operator, meaning all other…
S4 is a modal logic system defined by reflexivity and transitivity axioms for its accessibility relation. This system implies that…
Seriality defines a property of relations, ensuring every element in the domain maps to at least one element in the…
Sequent calculus is a formal system for logical entailments, representing deductions as sequences of formulas. It emphasizes structural rules, providing…
Sequent calculus is a formal system representing logical deductions. It uses sequences of formulas before and after a turnstile, signifying…