Formal Consequence: Logic’s Pure Structure
A formal consequence is a conclusion derived solely from the logical form…
Forced March Sorites Paradox
A forced march sorites paradox examines how small, incremental changes, when accumulated,…
Fixed Point: Understanding Mathematical and Logical Stability
A fixed point is a value that remains unchanged when a specific…
Fitch Paradox
The Fitch paradox, a puzzle in epistemic logic, challenges our understanding of…
First-Order Variables in Logic
First-order variables are placeholders for individuals within a specific domain in first-order…
First-Order Theory
A first-order theory formalizes mathematical reasoning using first-order logic. It defines relationships…
First-Order Logic
First-order logic (FOL) is a formal system using quantifiers like 'for all'…
First-Degree Entailment (FDE)
FDE is a logical system that allows propositions to be both true…
Finite Model Theory
Finite model theory explores structures with finite domains. It investigates properties and…
Finitary Formal Systems Explained
A finitary formal system uses only finite operations, proofs, and expressions. It…