Temporal modal logic extends modal logic with time-related modalities like 'always' and 'sometimes'. It enables reasoning about the temporal aspects…
The syllogistic figure defines a syllogism's structure based on the middle term's placement. There are four distinct figures, each impacting…
A subtheory is a specialized theory nested within a broader one. It shares some axioms and theorems but focuses on…
A subordinate connective is a logical operator appearing within the scope of another logical operator in a compound proposition. It…
Subalternation describes how a universal statement's truth guarantees the truth of its corresponding particular statement. It's a fundamental concept in…
A structural rule in logic, particularly proof theory, governs the manipulation of sequent components. It operates without regard to the…
A strong counterexample in intuitionistic logic disproves an instance of the law of excluded middle. It's a proof of negation,…
Simple type theory organizes objects into a hierarchy of types, classes, and classes of classes. It contrasts with ramified type…
Satisfaction in model theory describes the relationship between a structure and a sentence, where the structure makes the sentence true…
Quantifiers are fundamental logical operators like 'all' or 'some' that specify the quantity of elements in a domain satisfying a…