computability

Induction on Well-Formed Formulas

A formal logic and mathematics proof technique. It verifies properties for basic formulas and ensures they are maintained through operations…

4 days ago

Incompleteness in Logic and Mathematics

The property of a logical or mathematical system where not all true statements can be proven within the system's own…

4 days ago

The Halting Problem

The halting problem asks if it's possible to determine if any given program will halt or run forever. Alan Turing…

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Gödel’s Second Incompleteness Theorem

Gödel's second incompleteness theorem states that no consistent formal system strong enough to include basic arithmetic can prove its own…

4 days ago

Gödel’s First Incompleteness Theorem

Gödel's First Incompleteness Theorem states that any consistent formal system capable of basic arithmetic contains true statements that are unprovable…

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Gödel Sentence

A self-referential sentence in formal systems, a Gödel sentence demonstrates incompleteness theorems by asserting its own unprovability within that system.…

4 days ago

Gödel Numbering

Gödel numbering assigns unique natural numbers to symbols, formulas, and proofs in formal systems. This allows mathematical statements to be…

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Finite Character: Understanding Limited Systems

Finite character describes systems where all essential properties can be understood by analyzing a limited, finite portion. This concept is…

4 days ago

Finitary Formal Systems Explained

A finitary formal system uses only finite operations, proofs, and expressions. It relies on objects constructible in a finite number…

4 days ago

Finitary Arithmetic

Finitary arithmetic is a mathematical approach that emphasizes constructive methods, avoiding infinite concepts. It focuses on operations and proofs that…

4 days ago