Natural Independence Phenomenon
A type of mathematical result which is considered by most logicians as more natural than theGödel. 
Finite combinatorial examples include Goodstein's Theorem, a finite form of Ramsey's Theorem, and a finite formof Kruskal's Tree Theorem (Kirby and Paris 1982; Smorynski 1980, 1982, 1983; Gallier 1991).
References
Gallier, J. ``What's so Special about Kruskal's Theorem and the Ordinal Gamma[0]? A Survey of Some Results in Proof Theory.'' Ann. Pure and Appl. Logic 53, 199-260, 1991. Kirby, L. and Paris, J. ``Accessible Independence Results for Peano Arithmetic.'' Bull. London Math. Soc. 14, 285-293, 1982. Smorynski, C. ``Some Rapidly Growing Functions.'' Math. Intell. 2, 149-154, 1980. Smorynski, C. ``The Varieties of Arboreal Experience.'' Math. Intell. 4, 182-188, 1982. Smorynski, C. ```Big' News from Archimedes to Friedman.'' Not. Amer. Math. Soc. 30, 251-256, 1983.
- Compound Polyhedron
- Computability
- Computable Function
- Computable Number
- Computational Complexity
- Concatenated Number Sequences
- Concatenation
- Concave
- Concave Function
- Concentrated
- Concentric
- Concentric Circles
- Conchoid
- Conchoid of de Sluze
- Conchoid of Nicomedes
- Concho-Spiral
- Concordant Form
- Concur
- Concurrent
- Concyclic
- Condition
- Conditional Convergence
- Conditional Probability
- Condition Number
- Condom Problem