Weak Counterexample in Intuitionistic Logic
A weak counterexample in intuitionistic logic signifies a lack of positive evidence…
Strong Counterexample in Intuitionistic Logic
A strong counterexample in intuitionistic logic disproves an instance of the law…
Robinson Arithmetic
Robinson arithmetic is a simplified version of Peano arithmetic, omitting the induction…
Reverse Mathematics
Reverse mathematics investigates the logical strength of mathematical theorems. It aims to…
Relative Consistency Proof
A relative consistency proof demonstrates that if a system S is consistent,…
Philosophy of Logic
The philosophy of logic explores the fundamental nature, assumptions, and implications of…
Neo-Logicism in the Philosophy of Mathematics
Neo-logicism revives the logicist project of grounding mathematics in logic. It addresses…
Neo-Fregeanism: A Modern Approach to Logicism
Neo-Fregeanism revives Frege's logicist project, aiming to base mathematics on logic. It…