Gödel’s Second Incompleteness Theorem
Gödel's second incompleteness theorem states that no consistent formal system strong enough…
Gödel’s First Incompleteness Theorem
Gödel's First Incompleteness Theorem states that any consistent formal system capable of…
Gödel-Dummett Logic
A distinct intuitionistic logic, Gödel-Dummett logic incorporates a principle of maximal elements.…
Gödel Numbering
Gödel numbering assigns unique natural numbers to symbols, formulas, and proofs in…
Truth-Value Glut
A truth-value glut arises in formal semantics when a theory assigns multiple…
Glivenko’s Theorem
Glivenko's theorem in logic connects classical and intuitionistic systems. It states that…
Generalized Quantifiers: Beyond ‘All’ and ‘Some’
Generalized quantifiers extend logical and linguistic expression beyond basic 'all' or 'some'.…
Geach-Kaplan Sentence
A sentence type probing philosophy of language and logic. It highlights issues…
Gap – Truth-Value Gap
A truth-value gap occurs when a statement lacks a definite truth value…
Frege’s Theorem
Frege's theorem establishes that arithmetic is reducible to logic. It demonstrates how…