definition 3.83 Peano arithmetic
open in the book ·
parts/02-mathematical-methods/01-logic-sets.tex:2344
· p. 45
- ground object -- no derivation owed
Rests on
- depends_on axiom 3.33 Peano axioms ¶
- depends_on axiom 3.34 Principle of induction ¶
- depends_on definition 3.80 Formal system ¶
Supports
-
depends_on
lemma A.19
Numerals behave
¶
-
depends_on
lemma A.24
lem:app-inc-beta-delta0
¶
-
depends_on
theorem A.25
thm:app-inc-primrec
¶
-
depends_on
theorem A.17
Representability
¶
- depends_on proposition A.28 prop:app-inc-derivability ¶
- depends_on theorem A.30 Church, Turing ¶
- depends_on theorem A.26 Diagonal lemma ¶
- depends_on theorem A.27 Rosser ¶
-
depends_on
theorem A.17
Representability
¶
-
depends_on
theorem A.25
thm:app-inc-primrec
¶
-
depends_on
lemma A.20
$\Sigma_{1}$-completeness
¶
- depends_on theorem A.25 thm:app-inc-primrec ¶ ↺
- depends_on theorem A.17 Representability ¶ ↺
- depends_on theorem A.25 thm:app-inc-primrec ¶ ↺
- depends_on theorem A.27 Rosser ¶ ↺
-
depends_on
lemma A.24
lem:app-inc-beta-delta0
¶
-
depends_on
lemma 3.86
Diagonal lemma
¶
-
depends_on
theorem 3.87
Gödel, 1931
¶
- depends_on theorem A.29 Second incompleteness theorem ¶
- depends_on theorem 3.88 Gödel's second incompleteness theorem ¶
- depends_on theorem 3.91 Tarski's undefinability of truth ¶
-
depends_on
theorem 3.87
Gödel, 1931
¶
- depends_on theorem 3.88 Gödel's second incompleteness theorem ¶ ↺
Neighborhood
Every logical edge within two steps of this node.
- declared and complete
- partly declared
- a check failed
- not graded
- declared in the source
- inferred from structure
Edges
| type | direction | node | provenance | where |
|---|---|---|---|---|
depends_on |
→ | Peano axioms | declared | parts/02-mathematical-methods/01-logic-sets.tex:2361 |
depends_on |
→ | Principle of induction | declared | parts/02-mathematical-methods/01-logic-sets.tex:2361 |
depends_on |
→ | Formal system | declared | parts/02-mathematical-methods/01-logic-sets.tex:2361 |
depends_on |
← | Numerals behave | declared | appendices/A-long-proofs.tex:2059 |
depends_on |
← | Diagonal lemma | declared | parts/02-mathematical-methods/01-logic-sets.tex:2444 |
depends_on |
← | Gödel's second incompleteness theorem | declared | parts/02-mathematical-methods/01-logic-sets.tex:2535 |