Formal Consequence: Logic’s Pure Structure
A formal consequence is a conclusion derived solely from the logical form…
First-Order Theory
A first-order theory formalizes mathematical reasoning using first-order logic. It defines relationships…
Finitely Axiomatizable Theories
A theory is finitely axiomatizable if it can be completely defined by…
Finitary Formal Systems Explained
A finitary formal system uses only finite operations, proofs, and expressions. It…
Erotetic Logic: The Logic of Questions
Erotetic logic is the formal study of questions. It examines question structures,…
Epistemic Modal Logic
A specialized field of modal logic focusing on formalizing reasoning about knowledge…
Elimination Rule in Logical Inference
An elimination rule in logic simplifies formulas by removing connectives or quantifiers.…